Ningrum, Ayu Puspita, Suwarto Suwarto, and Asep Setiawan. “Determination of Fertilizer Doses of Sweet Potato (Ipomoea Batatas L.) ‘Rancing’”. Journal of Tropical Crop Science 5, no. 2 (June 1, 2018): 55–63. Accessed February 22, 2026. https://www.j-tropical-crops.com/index.php/agro/article/view/150.