BILOUS, Vladyslav. Requirements for Creating a Game Learning System Using Mobile Applications for Primary School Students. International Journal of Research in E-learning, [S. l.], v. 4, n. 1, p. 87–100, 2018. Disponível em: https://trrest.vot.pl/ojsus/index.php/IJREL/article/view/8347. Acesso em: 7 may. 2025.