EM, S.; NUN, N.; PHANN, S. Qualities, personal characteristics, and responsibilities of qualified teachers in the 21st century. Cambodian Journal of Educational Research, [S. l.], v. 1, n. 2, p. 49–63, 2021. DOI: 10.62037/cjer.2021.01.02.05. Disponível em: https://cjerjournal.com/index.php/cjer/article/view/73. Acesso em: 13 nov. 2026.