HIKMATULLAH, . Andisols from Tondano Area, North Sulawesi: Properties and Classification. JOURNAL OF TROPICAL SOILS, [S. l.], v. 13, n. 1, p. 77–85, 2008. DOI: 10.5400/jts.2008.v13i1.77-85. Disponível em: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/9. Acesso em: 4 aug. 2025.