KARMILA SURYANI; KHAIRUDIN; ERIL SYAHMAIDI. ONLINE TRACER STUDY OF BUNG HATTA UNIVERSITY. GEOMATE Journal, [S. l.], v. 13, n. 37, p. 20–27, 2016. Disponível em: https://geomatejournal.com/geomate/article/view/1500. Acesso em: 5 jul. 2022.