How to Format References in a Thesis Correctly

What Are References in a Thesis

References are the list of sources you actually used to build your theoretical foundation, research model, scales, methods, and discussion of results. This list usually appears at the end of the thesis, after the main content and before the appendices if your university requires that order. You can also read the guide to what an appendix is to place the final sections of your thesis correctly.

Formatting references has two parts that must match. The first is the in-text citation, such as (Nguyễn Đình Thọ, 2011) or (Hair et al., 2010). The second is the reference list at the end, which gives the full author, year, title, publisher, or journal information. Every source cited in the text must appear in the final list. Conversely, a source that appears only in the list but is never used may lead the reader to ask where you consulted it.

The purpose of references is to let readers trace the origin of a concept, scale, or claim. References also separate your analysis from the ideas and findings of other authors. For a quantitative thesis, you will usually need to cite methods books, articles that establish the research model, sources for measurement scales, and relevant previous studies.

The length of the reference list should not be decided by one fixed number. A narrow topic may use a few dozen sources, while a topic on consumer behaviour or digital transformation may require more journal articles. Check whether each source is relevant, real, used in the thesis, and formatted consistently.

Standard Structure of a Reference List

Before entering individual sources, choose one citation style. Many universities require APA, but the name of the style, the order of information, and the way author names are written may be specified separately by your department. If the thesis proposal or departmental handbook gives a particular template, that template takes priority.

The table below gives a practical structure commonly used for thesis references. Use it as a checklist, not as a replacement for your university's official requirements.

Book titles, journal titles, and report titles are usually italicised under APA rules. Article titles and book chapter titles are generally written in sentence case according to the citation style. Check capitalisation, full stops, commas, and brackets throughout the list, because inconsistencies are easy to notice when the committee reviews your methods and background sections.

For Vietnamese sources, keep the author's name and Vietnamese diacritics unchanged. For English sources, do not translate an article title into Vietnamese in the reference list if you are using APA. If a DOI is available, you may add it according to your university's requirements. If an online source has no author or year, check the source again before using it instead of guessing the missing information.

Steps for Formatting References

Step 1: Confirm Your Department's Citation Rules

Open your department's thesis guide or the template provided by your lecturer. Write down three points: the citation style, the ordering of the reference list, and the requirements for online sources. Some departments arrange entries alphabetically by the author's surname, while others arrange them in order of appearance in the text. Do not mix the two systems.

If you are building the full thesis structure, the undergraduate thesis topic page can help you check the sections before completing the final chapter. Prepare the reference list while you write rather than leaving it until the night before submission.

Step 2: Create a Source Tracking Table

Create a spreadsheet with these columns: source ID, author, year, document title, source type, publication venue, DOI or URL, section used, and citation status. Put one document on each row. This helps you distinguish two papers by the same author in the same year and find a source again when your lecturer asks about it.

A paper by Hair published in the same year as several other sources can be labelled 2010a and 2010b if the citation style you use requires the distinction. Add the letters a and b only when the text actually contains multiple sources by the same author from the same year.

Step 3: Add Citations While You Write

When you write a claim based on a source, insert the citation immediately after that claim. For example: “Cronbach's Alpha reflects the internal consistency of a scale (Cronbach, 1951).” If you paraphrase an author's idea in your own words, you still need a citation. Changing a few words in the original sentence does not turn the content into your own idea.

When a paragraph combines several sources, place the sources at the end of the sentence according to the required style. Make sure the reader can tell which source supports which claim. For a definition, model, or scale, place the citation immediately after the introductory sentence instead of grouping every source at the end of a long paragraph.

You can also read how to cite references to distinguish direct quotations, paraphrases, parenthetical citations, and narrative citations that name the author in the sentence.

Step 4: Standardise the Final Reference List

Once the content is stable, export the source list from your tracking table and check every entry. Do not copy information directly from Google Scholar without checking it, because the record may omit the volume, issue, page range, Vietnamese diacritics, or the correct journal title.

Write author names consistently. One source should not show the full name in one entry, initials in another, and a different surname order in a third. For groups of authors, check the rule about how many names should be written in full and when to use “et al.”

Step 5: Cross-Check in Both Directions

Find every citation in the text and mark its matching entry in the reference list. Then read through the reference list and find where each source is used in the thesis. Also check that the publication year matches in both places, the author names are spelled correctly, and the source actually exists.

If you use Word, search quickly with Ctrl + F for the author's surname or year. If you use reference-management software, check the formatting after automatic insertion. Software reduces manual entry errors, but it cannot decide which source fits your argument.

Usable Sample Sentences

The sentences below are templates for replacing the content in brackets. Read the source and adjust each sentence to match your study's actual argument. Do not copy a sentence unchanged if the source does not support it.

How to write this in your thesis

You can adapt the following paragraph for the theoretical foundation chapter: “[Concept name] is understood as [brief definition]. In this study, [concept name] is measured through [number] indicators, adopted and adapted from [author, year] to fit the context of [research population].”

For the methods chapter, you can write: “The data were analysed using [SPSS or SmartPLS] to assess [scale reliability, scale validity, and relationships among variables]. The analytical procedure was developed based on [methodological source, year] and adapted to the research model.”

A sample sentence must reflect what you actually did. If you did not use a particular scale or have not read its original source, do not use the template just to make the reference list look more complete.

A Short Reference List Example

Suppose your topic examines factors affecting intention to use a learning application. In the theoretical foundation, you define usage intention using a technology acceptance model, use a Vietnamese methods book to explain the research process, and use a journal article for the PLS-SEM method.

In the text, you could write: “Usage intention reflects the likelihood that an individual plans to continue using or begin using a system in a particular context. This concept is considered in technology acceptance models such as TAM (Davis, 1989). The PLS-SEM assessment process includes the measurement model and the structural model, as described by Hair et al. (2022). The quantitative research design steps were informed by (Nguyễn Đình Thọ, 2011).”

The corresponding reference list could be presented as follows:

1. Davis, F. D. (1989). Perceived usefulness, perceived ease of use, and user acceptance of information technology. MIS Quarterly, 13(3), 319-340.
2. Hair, J. F., Hult, G. T. M., Ringle, C. M., & Sarstedt, M. (2022). A Primer on Partial Least Squares Structural Equation Modeling (PLS-SEM) (3rd ed.). Sage.
3. Nguyễn Đình Thọ. Publication year 2011. Scientific research methods in business. Labour and Social Publishing House.

This is an illustrative example of matching in-text citations with the final reference list, not a mandatory list for every topic. If you use another source to define or measure a variable, replace the illustrative source with the source you have read and actually used.

When presenting the full thesis, keep the heading numbers and related sections consistent. If you are completing the opening sections and need to check the structure, compare the essay table of contents and abstract guides so that the reference list is not placed incorrectly in the final file.

Common Errors That Lead to Follow-Up Questions

The first error is citing a source that does not appear in the reference list. This often happens when you write quickly, add a source to a paragraph, and forget to update the final section. The reverse error is also common: the list contains many papers, but when asked, you cannot explain which claim each paper supports.

The second error is presenting a secondary source as though you had read the original. For example, you read a review article that mentions a scale, then put the original article in your list without checking it. If the committee asks about the number of indicators or the context in which the scale was developed, you may have difficulty explaining it.

The third error is copying data from a search tool without checking it. Author names may be reversed, the year may be the website's update year rather than the publication year, and the journal title may be abbreviated incorrectly. For quantitative research, these errors directly affect your ability to trace the method and the measurement scale.

The fourth error is mixing several styles in one list. Some entries contain URLs, some include access dates, and others show only the article title. Return to your department's template and revise the entire list according to one style instead of correcting only a few lines.

The fifth error is using a source that does not fit the claim. A paper about usage intention in banking does not automatically support a conclusion about students using a learning application. When you cite a source, state its context, population, and limits clearly.

The final error is adding references simply to increase the number of sources. The committee usually cares more about how you used the sources than how long the list is. A short, accurate list that connects clearly to the research model is more valuable than many sources you have not read.

Frequently asked questions

Which citation format is correct for a thesis?

A correct citation gives at least the author and year required by the style you use, while the full source appears in the reference list. For example, (Davis, 1989) is an in-text citation, while the final entry must include the full article title, journal, volume, issue, and pages according to the required format.

Place the citation immediately after the claim it supports. Do not put a group of sources at the end of a long paragraph if the reader cannot tell which source relates to which sentence.

Are the reference list and in-text citations formatted in the same way?

The two parts are related but not identical. An in-text citation is a short form used to identify the source, while the final reference entry contains enough information to locate it. The author and year must match in both places.

If your university requires APA, use the APA format in both the text and the reference list. If your university has its own template, prioritise that template and apply it consistently throughout the thesis.

Can I use Google Scholar to format references?

You can use Google Scholar to find a source and obtain a draft citation record. Then open the original article and check the author, year, journal title, volume, issue, pages, and DOI if available. Automatically generated information may be incomplete or formatted incorrectly.

For books and reports, also check the publisher's or issuing organisation's website. For journal articles, the journal website is usually more reliable than a combined database record.

Do I need to include a URL and access date for every source?

Not every source needs a URL and access date. A journal article with complete publication information can usually be identified by its journal, volume, issue, pages, or DOI. Websites and data that change regularly may require a URL and access date under your university's rules.

Check your department's guide before adding an access date to every source. Adding information that does not match the required template can also create inconsistencies.

Should references be ordered by appearance in the text?

The order depends on the style required by your university or department. Some lists are arranged alphabetically by author, while numbered systems arrange sources by the order in which they appear in the text. Do not choose one system yourself if the guide already specifies another.

After choosing the system, keep it unchanged from the first source to the last. Check both Vietnamese and English sources, because the rules for ordering names may be specified separately.

Open your thesis file, create a tracking table for every source currently in use, and cross-check each citation against the final reference list before making the last formatting edits. If you need to standardise the methods, scales, and chapter style at the same time, see module M5 DoThesis.