Normaulidia, Normaulidia, Akhmad Saidy, and Fadly Yusran. “Nitrogen Availability in Upland Soil Treated With Swallow Dropping”. Acta Solum 1, no. 1 (November 16, 2022): 28-35. Accessed May 4, 2024. http://jtam.ulm.ac.id/index.php/actasolum/article/view/1382.