Start Your Research with a Review Article
Someone reviewed recent academic literature for you, then wrote an article. A review article.
This is just a quick rule-of-thumb tutorial. But at least it's written by a PhD.
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Find Academic Sources
To find academic sources quickly: Search Google Scholar (full text link is on the right, free of charge), check Journal JUFO level (level>0).
Once you find a good one, find related articles with Connected Papers.