Academic writing gains credibility and depth as we include references and quotations from authentic and authoritative sources. This goes a long way to complement and affirm our research ideas, while drawing evidences and adding perspectives to our original work.
Using content from research work, journals, that are usually peer reviewed, besides information from reports and official government publications and websites does augment the quality and acceptability of a scholarly writing.
While citing the sources we quote, we may use any of the commonly used formats such as quoting, paraphrasing, or summarizing source contents, to blend them into the research idea or point we choose to emphasize.
The TRAAP method referred in the video clip is quite apt to evaluate the credibility of sources of information, that a researcher may choose to use. Dedicating proportionate time to this exercise does pay in the long run, aiding us to avoid errors and rework in the later stages of our research.