“The Role of Strategic Purchasing, Internal Integration, Information Sharing, and Supplier Development on Firm Performance: A Case Study of SMEs in Traditional Markets”. Sahmiyya: Jurnal Ekonomi dan Bisnis 5, no. 1 (May 31, 2026): 82–97. Accessed July 19, 2026. https://e-journal.uingusdur.ac.id/sahmiyya/article/view/15197.