SARNO, . Pengaruh Kombinasi NPK dan Pupuk Kandang terhadap Sifat Tanah dan Pertumbuhan serta Produksi Tanaman Caisim. JOURNAL OF TROPICAL SOILS, [S. l.], v. 14, n. 3, p. 211–219, 2009. DOI: 10.5400/jts.2009.v14i3.211-219. Disponível em: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/88. Acesso em: 19 jul. 2025.