F. Gloria, A. Setyowati, A. D. K. Wibowo, and G. R. Alfarizi, “Application of EOQ, EOI, and ROP Methods in Pharmaceutical Procurement Management: A Case Study at Berkah Dalem 2 Pharmacy, Semarang Regency”, JPS, vol. 9, no. 3, pp. 2639–2647, Aug. 2026.