NURSYAMSI, D.; IDRIS, K.; SABIHAM, S.; RACHIM, D. A.; SOFYAN, A. NH4+, dan Fe3+ terhadap Ketersediaan K Jerapan dan Pengaruh Na+, NH4+ pada Tanah-tanah yang Didominasi Mineral Liat Smektit. JOURNAL OF TROPICAL SOILS, [S. l.], v. 14, n. 1, p. 33–40, 2009. DOI: 10.5400/jts.2009.v14i1.33-40. Disponível em: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/14. Acesso em: 5 aug. 2025.