When you use sources in your presentation, you need to balance them and avoid over-reliance on one type, perspective, or source. This shows that you have done comprehensive research and have taken different viewpoints and evidence into consideration. A few strategies to apply are to utilize a variety of sources, such as books, journals, websites, reports, podcasts, videos, and interviews. Primary sources are the original and firsthand accounts of an event or phenomenon. They can include surveys, experiments, interviews, and documents. Secondary sources are the interpretations and analyses of primary sources. Examples include books, articles, reviews, and commentaries. Tertiary sources are the summaries and compilations of primary and secondary sources. Encyclopedias, dictionaries, and handbooks are all examples of tertiary sources. Lastly, using reputable sources is important; these are the sources that have been peer-reviewed, edited, verified, and endorsed by experts in your field.