Sitompul, Sabar Rudi, Lustani Samosir, and Arip Surpi Sitompul. 2023. “Development of a Relevant Communicant Catechization Teaching Module in Indonesian Christian Lutheran Church”. The International Journal of Social Sciences World (TIJOSSW) 5 (2):200-205. https://www.growingscholar.org/journal/index.php/TIJOSSW/article/view/390.