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Joshua L. Howard;Julien Bureau;Frédéric Guay;Jane X. Y. Chong;Richard M. Ryan;. (2021). Student Motivation and Associated Outcomes: A Meta-Analysis From Self-Determination Theory . Perspectives on Psychological Science, (), –. doi:10.1177/1745691620966789 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research