Rachman, A., O. . Patra, H. . Suryana, and E. . Nugraha. “Optimization of Water Injection Pump (WIP) Maintenance at PT. Z”. Eduvest - Journal of Universal Studies, vol. 6, no. 1, Jan. 2026, pp. 330-49, doi:10.59188/eduvest.v6i1.51982.