YANTI, P. H.; MUHKTAR, A. KARAKTERISASI LEMPUNG ALAM DESA GEMA TERAKTIFASI FISIKA. CHEMISTRY PROGRESS, [S. l.], v. 8, n. 1, 2019. DOI: 10.35799/cp.8.1.2015.9396. Disponível em: https://ejournal.unsrat.ac.id/v3/index.php/chemprog/article/view/9396. Acesso em: 22 nov. 2024.