Yoserizal, Mita Rosaliza, Rina Susanti. “A Study of Teacher Quality Improvement in Rokan Hilir Regency, Riau Province”. International Journal of Advanced Science and Technology 29, no. 05 (April 9, 2020): 01 - 19. Accessed April 28, 2024. http://sersc.org/journals/index.php/IJAST/article/view/8525.