Simatupang, Ulina. “ANALISA KELAYAKAN KADAR N, P, K PUPUK ORGANIK CAIR SETELAH DIDEKOMPOSISI SELAMA 30 HARI”. Agroprimatech 5, no. 1 (April 30, 2021): 51–57. Accessed December 11, 2025. https://jurnal.unprimdn.ac.id/index.php/Agroprimatech/article/view/1696.