DHUNGANA, Babu Ram. Challenges in the Development and Use of Educational Materials in Schools . Education Review Journal, [S. l.], v. 2, n. 01, p. 90–101, 2025. DOI: 10.3126/erj.v2i01.86470. Disponível em: https://www.nepjol.info/index.php/erj/article/view/86470. Acesso em: 8 dec. 2025.