Sihombing, Lotnatigor. “ISU ETIKA SOSIAL DALAM GEREJA YANG MULA-MULA”. Jurnal Amanat Agung 11, no. 1 (May 1, 2015): 169-180. Accessed April 5, 2025. http://178.128.61.104/index.php/JAA/article/view/201.