Oryza Tannar 2019. 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. Journal of Economics, Business, and Government Challenges. 2, 01 (Apr. 2019), 12–21. DOI:https://doi.org/10.33005/ebgc.v2i1.62.