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Eugenia Y. Huang; Sheng Wei Lin; Travis K. Huang. (2012). What type of learning style leads to online participation in the mixed-mode e-learning environment? A study of software usage instruction. , 58(1), 0–349. doi:10.1016/j.compedu.2011.08.003 

An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research