SIHOMBING, Aeron Frior. PENDIDIKAN KARAKTER DALAM KOTBAH DI BUKIT. Regula Fidei : Jurnal Pendidikan Agama Kristen, [S. l.], v. 4, n. 1, p. 38–56, 2020. Disponível em: http://christianeducation.id/e-journal/index.php/regulafidei/article/view/31. Acesso em: 15 feb. 2026.