DEMERS, Marthe. La didactique des sciences par contrat. Canadian Journal of Education/Revue canadienne de l’éducation, [S. l.], v. 3, n. 2, p. 27–41, 1978. Disponível em: https://cje-rce.ca/index.php/cje-rce/article/view/8012. Acesso em: 20 sep. 2026.