NTAWIGAYA, N. J.; KINWIKO, J. Teaching and Learning Materials in Tanzanian Secondary Schools: Challenges and Opportunities. Indonesian Educational Research Journal, [S. l.], v. 2, n. 2, p. 66–79, 2024. DOI: 10.56773/ierj.v2i2.46. Disponível em: https://journal.id-sre.org/index.php/ierj/article/view/46. Acesso em: 6 dec. 2025.