Marx, Ronald W., Jack Martin, John F. Ellis, and John Hasell. 1978. “Improving the Instructional Effectiveness of University Teaching Assistants: Report I”. Canadian Journal of Education Revue Canadienne De l’éducation 3 (2):1-12. https://cje.journals.publicknowledgeproject.org/index.php/cje-rce/article/view/8009.