J.F. Sagala, Lenda Dabora, Kiki Priskila, Aprianty Susanty, and Julia Kristina. 2020. “Profesionalitas Guru Agama Kristen Berdasarkan Surat 1 Timotius”. Didache: Journal of Christian Education 1 (1). Ungaran, Indonesia:25-34. https://doi.org/10.46445/djce.v1i1.292.