WALAT, W. Podstawy teorii i praktyki podręcznika szkolnego. Journal of Education, Technology and Computer Science, [S. l.], v. 7, n. 1, p. 54–65, 2013. Disponível em: https://journals.ur.edu.pl/jetacomps/article/view/6807. Acesso em: 21 lis. 2024.