BARUS, J.; MURNI, A. M. Recommendation of Phosphate and Potassium Fertilizers for Maize at Five Locations in Lampung. JOURNAL OF TROPICAL SOILS, [S. l.], v. 15, n. 2, p. 127–132, 2018. DOI: 10.5400/jts.2010.v15i2.127-132. Disponível em: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/49. Acesso em: 29 jul. 2025.