FMEA-Based Risk Analysis to Improve Material Planning Effectiveness at PLN Indonesia Power UBP Saguling. J. Optimasi Tek. Ind. [Internet]. 2026 Apr. 2 [cited 2026 Jul. 17];8(1):1-9. Available from: https://newjournal.lppmunindra.ac.id/index.php/JOTI/article/view/2189