Suwardi, Suwardi, Dyah Tjahyandari Suryaningtyas, Hens Saputra, Mochamad Rosjidi, Anwar Mustafa, and Abdul Ghofar. “Release Pattern of Nitrogen and Potassium from Controlled Release Fertilizer (CRF) in the Soil”. JOURNAL OF TROPICAL SOILS 28, no. 3 (April 10, 2023): 99–106. Accessed July 26, 2025. https://journal.unila.ac.id/index.php/tropicalsoil/article/view/528.