Researchers share their sources of information to give credit where it is due, and so other researchers can
- evaluate the accuracy of conclusions
- save time searching for relevant resources
When you find content - an article, chapter, book, podcast, thesis, etc.- you like
Look at the References or Literature Cited for leads to other relevant sources. This can save you a lot of time because you are letting someone else do the citation hunting, and you can pick and choose from their collection to augment your own. This is particularly important when the topic is not well researched, or you are new to the topic field.
Look at Footnotes and Notes at the end of the book, can also provide leads to other resources, or explain why the author has made certain statements.
Be aware that these citations and resources may show a confirmation bias.
Use lateral research to review the authors and topics.