3D Agro-ecological Land Use Planning Using Surfer Tool for Sustainable Land Management in Sumani Watershed, West Sumatra Indonesia. JOURNAL OF TROPICAL SOILS, [S. l.], v. 18, n. 3, p. 241–254, 2014. DOI: 10.5400/jts.2013.v18i3.241-254. Disponível em: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/193. Acesso em: 30 oct. 2025.