Stańdo, Jacek, Katarzyna Jagielska, and Żywilla Fechner. “Measurement of Learning Outcomes in Mathematics in Relation to Choosing a Role Model”. Multidisciplinary Journal of School Education 12, no. 1 (23) (June 30, 2023): 387-412. Accessed May 20, 2024. https://czasopisma.ignatianum.edu.pl/jpe/article/view/2259.