Winda Ocviana, Rahima Br Purba, and Heriyati Chrisna. “The Impact of E-Procurement Implementation, Procurement Officer Competency, And Internal Supervision on Execution of Goods and Services Procurement: A Case Study of the Provincial Government of North Sumatra”. INFOKUM 13, no. 05 (July 1, 2025): 1396-1412. Accessed July 24, 2025. https://seaninstitute.org/infor/index.php/infokum/article/view/2932.