1.
Simangunsong B, Aritonang HD, Ariawan S, Simanjuntak H, Harianja R. Tanggung Jawab Gereja Membangun Gerakan Eco-literacy di Kaldera Toba UNESCO Global Geopark. Epi [Internet]. 2021 Nov. 3 [cited 2026 Feb. 2];5(2):262-75. Available from: https://www.stttorsina.ac.id/jurnal/index.php/epigraphe/article/view/313