Zulham Hidayah Pardede. “Dampak Efektivitas Program Sertifikasi Guru Dalam Meningkatkan Profesionalisme Guru Di Man 2 Model Medan ”. Proceedings of Annual Conference on Islamic Educational Management, Vol. 3, no. 1, Jan. 2022, pp. 828 -45, https://proceedings.uinsby.ac.id/index.php/aciem/article/view/659.