BUA, Joel D.; MARTIN, Matronillo Del Mundo. Handling multi-grade teaching: It’s educational implication towards teachers’ competence. Management Research Journal, [S. l.], v. 9, n. 2, p. 1–12, 2020. DOI: 10.37134/mrj.vol9.2.1.2020. Disponível em: https://ejournal.upsi.edu.my/index.php/MRJ/article/view/3494. Acesso em: 13 may. 2025.