Michael, Patrick S. “Soil Fertility Status and Sweet Potato Cultivation in Composted Mounds under Humid Lowland Tropical Climatic Conditions”. SAINS TANAH - Journal of Soil Science and Agroclimatology 17, no. 2 (December 30, 2020): 144–151. Accessed October 19, 2026. https://jurnal.uns.ac.id/tanah/article/view/43426.