Siagian, Riris Johanna. “Penatua Gereja HKBP Dalam Pelayanan Diakonia Yang Inklusif”. Journal Of Human And Education (JAHE) 4, no. 6 (December 28, 2024): 1178–1183. Accessed July 22, 2026. http://www.jahe.or.id/index.php/jahe/article/view/2059.