Darso, Widya, Elizabeth Kaya, and Maimuna La Habi. “Pengaruh Pupuk Organik Cair Dan Urea Terhadap Kemasaman, N-Total, Serapan N, Serta Produksi Tanaman Selada (Lactuca Sativa L) Pada Regosol”. JURNAL BUDIDAYA PERTANIAN 19, no. 2 (December 30, 2023): 142-148. Accessed July 23, 2024. https://ojs3.unpatti.ac.id/index.php/bdp/article/view/13431.