WIRA ETIKA, A. P.; HASAN, R. Effect of Mineral and Humic Substances on Tailing Soil Properties and Nutrient Uptake by Pennisetum purpureum Schumach. JOURNAL OF TROPICAL SOILS, [S. l.], v. 20, n. 2, p. 101–109, 2016. DOI: 10.5400/jts.2015.v20i2.101-109. Disponível em: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/226. Acesso em: 4 aug. 2025.