PURBA, Tioner; HARAHAP, Erwin Masrul; HANUM, Chairani; RAHMAWATY, Rahmawaty. Land Suitability Evaluation For Paddy , Corn and Soybean in Binangalom Watershed Toba Samosir District North Sumatera. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 33, n. 1, p. 131–144, 2017. Disponível em: https://gssrr.org/JournalOfBasicAndApplied/article/view/7201. Acesso em: 20 jan. 2026.