Most websites are not going to provide the level of academic integrity required for your research. Even Google Scholar is not limited to articles that are written, edited, and fact-checked by subject experts. "Scholarly" sources most commonly refer to peer-reviewed publications that adhere to academic writing standards such as citation of sources. Academic peer review is a process in which works are vetted by experts in the field before being accepted for publication.
Try these search engines to find scholarly articles:
Try this site for open access scientific articles:
Try these for more for general background info:
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