Pratama, R. G. P., Mohruni, A. S., & Utami, N. P. E. (2022). IMPROVED EFFECTIVENESS OF CONTROLLED PROCUREMENT SYSTEM PROCESS WITH E-PROCUREMENT IN PT. PLN (PERSERO) UIK SUMBAGSEL. Journal of Mechanical Science and Engineering, 8(2), 025–028. https://doi.org/10.36706/jmse.v8i2.66