Maulana, Kaka Rizki, Widiyono Widiyono, and Arief Soma Darmawan. “Predicting Tablet Drug Expenditures Using Python-Based Facebook Prophet in Pharmaceutical Installations”. JURNAL TEKNOLOGI DAN OPEN SOURCE 8, no. 2 (December 4, 2025): 709 - 721. Accessed February 7, 2026. https://ejournal.uniks.ac.id/index.php/JTOS/article/view/4907.