SULAKHUDIN, S.; SYUKUR, A.; SHIDDIEQ, D.; YUWONO, T. Effect of Coated Urea with Humic-Calcium on Transformation of Nitrogen in Coastal Sandy Soil: A Soil Column Method. JOURNAL OF TROPICAL SOILS, [S. l.], v. 15, n. 1, p. 11–18, 2018. DOI: 10.5400/jts.2010.v15i1.11-18. Disponível em: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/22. Acesso em: 2 aug. 2025.