Mukhtar, Hidayat, and Alef Meichaty. “EFFECTIVENESS OF TEACHER CERTIFICATION IN IMPROVING SERVICE PROFESSIONAL SERVICE IN MADRASAH ALIYAH STATE OF JAMBI PROVINCE”. International Journal of Research -GRANTHAALAYAH 7, no. 12 (June 9, 2020): 292–314. Accessed May 26, 2024. https://www.granthaalayahpublication.org/journals/granthaalayah/article/view/30_IJRG19_A12_2925.