Ruff, Ryan Richard. “The Impacts of Retention, Expenditures, and Class Size on Primary School Completion in Sub-Saharan Africa: A Cross-National Analysis”. International Journal of Education Policy and Leadership 11, no. 8 (December 20, 2016). Accessed May 2, 2024. https://journals.sfu.ca/ijepl/index.php/ijepl/article/view/606.