WAGNER, H. . Frontal Instruction or Group Work. Tanzania Journal of Engineering and Technology, [S. l.], v. 1, n. 1, p. 82-85, 1974. DOI: 10.52339/tjet.v1i1.13. Disponível em: https://tjet.udsm.ac.tz/index.php/tjet/article/view/13. Acesso em: 18 may. 2024.