LESSING, A.; DE WITT, M. The value of continuous professional development: Teachers’ perceptions. South African Journal of Education, [S. l.], v. 27, n. 1, p. 53–67, 2007. DOI: 10.4314/saje.v27i1.25098. Disponível em: https://www.ajol.info/index.php/saje/article/view/25098. Acesso em: 14 oct. 2026.