Suharmoko, Suharmoko, and Agus Yudiawan. “The Effect of Certification on Teacher Performance and Learning Outcomes of Madrasah Students”. Journal of Quality Assurance in Islamic Education (JQAIE) 1, no. 1 (June 30, 2021): 10–21. Accessed July 2, 2025. https://e-jurnal.iainsorong.ac.id/index.php/jqaie/article/view/386.