Maniatis, Paraschos. “ABC Company’s Purchasing and Supply Management Optimization: Improving Performance and Reducing Costs through Competitive Bidding and Supplier Development”. European Journal of Science, Innovation and Technology 4, no. 5 (October 25, 2024): 27-38. Accessed November 21, 2024. https://ejsit-journal.com/index.php/ejsit/article/view/527.