Ramadhani, Muta’ Alya, Besse Helmi Mustawinar, Dwi Risky Arifanti, and Yuliani Yuliani. “Prediksi Harga Minyak Dunia Dengan Fuzzy Time Series”. Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika 7, no. 1 (February 29, 2024): 305–309. Accessed July 8, 2025. https://www.e-journal.my.id/proximal/article/view/3471.