NASRUL, B.; IDWAR, . Digital Analyses of Landsat ETM+ for Identify Agroforestry System in Riau. JOURNAL OF TROPICAL SOILS, [S. l.], v. 14, n. 1, p. 81–87, 2009. DOI: 10.5400/jts.2009.v14i1.81-87. Disponível em: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/20. Acesso em: 15 jul. 2025.