Kristian Sukatman, Piter Imanson Damanik. Challenges of Indonesian Christian Religious Education in the Industrial Era 4.0. IPCEP [Internet]. 2024 May 31 [cited 2025 Apr. 19];1(2):62-70. Available from: https://international.aripafi.or.id/index.php/IPCEP/article/view/32