Maristella, and Marlina Setia Sinaga. “Application of sugeno’s Fuzzy Inference System (FIS) in Determining Palm Oil Production”. Jurnal Absis: Jurnal Pendidikan Matematika Dan Matematika, vol. 8, no. 1, Apr. 2025, pp. 135-48, doi:10.30606/absis.v8i1.2788.