Maghfur, Maula Aringga, and Tranggono Tranggono. “Analysis of Forecasting Demand for Wheel Loader Unit Rental Using the Arima Method to Determine Safety Stock Inventory and Service Level at PT Petrokopindo Cipta Selaras”. Ranah Research : Journal of Multidisciplinary Research and Development 7, no. 3 (March 28, 2025): 2179-2191. Accessed April 24, 2025. https://jurnal.ranahresearch.com/index.php/R2J/article/view/1368.