JULIANI, Rita; SEMBIRING, Timbangen; SITEPU, Mester; MOTLAN, . Geophysical Study for Discovering The Missing of Lau Ketuken from The Surface at Sulkam Village. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 22, n. 1, p. 360–366, 2015. Disponível em: https://gssrr.org/JournalOfBasicAndApplied/article/view/4020. Acesso em: 16 jan. 2026.