Mushakamba, Guillaume, and Opiyo Andala Hesbon. “Effect of Teachers Continuous Professional Development (CPD) on Students’ English Language Competency in Day Secondary Schools in Rwanda: A Case of Gicumbi District”. International Journal of Management and Development Studies 13, no. 9 (September 30, 2024): 55–67. Accessed April 4, 2026. https://old.ijmds.in/index.php/ijmds/article/view/711.