Kartiasih, Fitri, Astri Melati Manik, Listya Mawarni, and Ilham Arya Dhuta Zain. “Analisis Volatilitas Dan Prediksi Harga Minyak Mentah Indonesia”. Jurnal Fourier 14, no. 2 (October 31, 2025): 103–119. Accessed May 23, 2026. https://fourier.or.id/index.php/FOURIER/article/view/236.