Harahap, Fitra Syawal, Abdul Rauf, Benny Hidayat, Hilwa Walida, Jamidi, and Lisdyani. “Availibility of P, K in Paddy Land Under Organic Application”. Jurnal Online PERTANIAN TROPIK 5, no. 3 (December 1, 2018): 434-440. Accessed April 28, 2024. https://talenta.usu.ac.id/jpt/article/view/3117.