Windirah, Nola, dan Ridha Rizki Novanda. “Analisis Volatilitas Harga Komoditi Sawit Indonesia Dengan Model Arch Garch”. Jurnal Sosial Ekonomi Pertanian 19, no. 2 (Juni 21, 2023): 101–114. Diakses April 8, 2025. https://journal.unhas.ac.id/index.php/jsep/article/view/14639.