Pratama, R. G. P., A. S. Mohruni, and N. P. E. Utami. “IMPROVED EFFECTIVENESS OF CONTROLLED PROCUREMENT SYSTEM PROCESS WITH E-PROCUREMENT IN PT. PLN (PERSERO) UIK SUMBAGSEL”. Journal of Mechanical Science and Engineering, vol. 8, no. 2, June 2022, pp. 025-8, doi:10.36706/jmse.v8i2.66.