SIRADZ, S. A. Phosphorus Sorption Characteristics of Red Soils from Lampung, West- and Central Java. JOURNAL OF TROPICAL SOILS, [S. l.], v. 14, n. 1, p. 25–31, 2009. DOI: 10.5400/jts.2009.v14i1.25-31. Disponível em: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/13. Acesso em: 9 sep. 2025.