Kaufman , David, et al. “An Evaluation Study of the Summer Language Bursary Program”. Canadian Journal of Education Revue Canadienne De l’éducation, vol. 7, no. 3, Jan. 1982, pp. 62-83, https://cje.journals.publicknowledgeproject.org/cje/index.php/cje-rce/article/view/8138.