KANYESIGYE, S. T. .; UWAMAHORO, J. .; KEMEZA, I. . The Effect of Professional Training on In-service Secondary School Physics ’Teachers’ Motivation to Use Problem-Based Learning. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 21, n. 8, p. 271–287, 2022. Disponível em: http://www.ijlter.net/index.php/ijlter/article/view/1393. Acesso em: 30 apr. 2026.