Prasetyowati, Dheka Agustin, et al. “Determining and Mapping Land Suitability for Porang (Amorphophallus Oncophyllus L.) Cultivation in Madiun Regency, Indonesia”. Jurnal Ilmiah Pertanian, vol. 20, no. 1, Feb. 2023, pp. 88-98, https://doi.org/10.31849/jip.v20i1.12128.