Oryza Tannar. Analysis Risk Management of Procurement System Goods/Services (Study Case in PT. Perusahaan Listrik Negara (PERSERO) of East Java Distribution, South Surabaya Service Area and Network. ebgc [Internet]. 2019 Apr. 30 [cited 2025 Jun. 26];2(01):12-21. Available from: https://ebgc.upnjatim.ac.id/index.php/ebgc/article/view/293