Rahmawati, Dita, and Khoirriah Widyasari. “Analysis of Phosphorus on Prill and Liquid Fertilizer”. Indonesian Journal of Chemistry and Environment 4, no. 2 (March 11, 2022): 73–78. Accessed May 15, 2025. https://jurnal.uny.ac.id/index.php/ijoce/article/view/48418.