Belay, Sintayehu. “The Contribution of Teachers’ Continuous Professional Development (CPD) Program to Quality of Education and Its Teacher-Related Challenging Factors at Chagni Primary Schools, Awi Zone, Ethiopia”. The International Journal of Humanities & Social Studies 4, no. 3 (March 31, 2016). Accessed July 23, 2024. https://internationaljournalcorner.com/index.php/theijhss/article/view/126416.