Eky, and Gustriza Erda. “Palm Oil Production Forecasting Using the SARIMA Model at the Terantam Plantation of PTPN IV Regional III in 2025”. Operations Research: International Conference Series 6, no. 4 (December 31, 2025): 191–205. Accessed January 27, 2026. https://mail.iorajournal.org/index.php/Orics/article/view/430.