Hett , Geoffrey G. “Two Types of Behavior Management Programs and Their Effects Upon Student Achievement”. Canadian Journal of Education/Revue canadienne de l’éducation 6, no. 1 (January 1, 1981): 32–41. Accessed September 19, 2026. https://cje.journals.publicknowledgeproject.org/cje/index.php/cje-rce/article/view/8091.