Sihombing, A. F. (2020) “PENDIDIKAN KARAKTER DALAM KOTBAH DI BUKIT”, Regula Fidei : Jurnal Pendidikan Agama Kristen, 4(1), pp. 38–56. Available at: https://e-journal.christianeducation.id/index.php/regulafidei/article/view/31 (Accessed: 10 April 2026).