Ardeńska, M. ., Ardeńska, A. ., & Tomik, R. (2019). Validity and reliability of the Polish version of the Academic Motivation Scale: a measure of intrinsic and extrinsic motivation and amotivation. Health Psychology Report, 7(3), 254–266. Pobrano z https://czasopisma.bg.ug.edu.pl/index.php/HPR/article/view/7944