Sinaga, Anggita Br, Riezky Purnama Sari, and Nurviana Nurviana. “Forecasting The Amount Of Oil and Non-Oil and Gas Exports In Indonesia Using The Box-Jenkins Method”. Mathline : Jurnal Matematika dan Pendidikan Matematika 8, no. 4 (November 30, 2023): 1573–1588. Accessed February 4, 2025. https://mathline.unwir.ac.id/index.php/Mathline/article/view/403.