Pranata, Josua, et al. “Drug Management On Availability Of Drugs In Pharmaceutical Installations Pabatu General Hospital Pt Pmn Using Fifo & Fefo Methods”. International Journal of Health and Pharmaceutical (IJHP), vol. 3, no. 1, Aug. 2022, pp. 117-23, doi:10.51601/ijhp.v3i1.136.