Pratiwi, A M, S Musdalifah, and D Lusiyanti. 2021. “Peramalan Harga Emas Menggunakan Metode Average Based And Fuzzy Logic Relationship”. JURNAL ILMIAH MATEMATIKA DAN TERAPAN 18 (2), 230 -42. https://doi.org/10.22487/2540766X.2021.v18.i2.15712.