AJANI, O. A. Exploring the Teacher Professional Development Activities: Perspectives of Nigerian High School Teachers. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 21, n. 6, p. 34–49, 2022. Disponível em: https://ijlter.myres.net/index.php/ijlter/article/view/1339. Acesso em: 2 may. 2026.