PIEROG, R. H. Schmuck, R. A. and Schmuck, P. A. (1976). <i>Group Processes in the Classroom.</i> (2nd edition). Canadian Journal of Counselling and Psychotherapy, [S. l.], v. 11, n. 2, 2012. Disponível em: https://cjc-rcc.ucalgary.ca/article/view/60106. Acesso em: 3 may. 2024.