O. Lembang, A. N. Insan, and M. Hamzah, “Analysis of Management Functions in an Efforts to Improve the Efficiency and Effectiveness of Management of Medicines and Expiry Medical Materials: JEL Classification: I10, I18, M11, M12, H83”, JLB, vol. 6, no. 6, pp. 1090-1109, Dec. 2025.