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, [S. l.], v. 5, n. 1, p. 82–97, 2026. DOI: 10.28918/sahmiyya.v5i1.07. Disponível em: https://e-journal.uingusdur.ac.id/sahmiyya/article/view/15197. Acesso em: 19 jul. 2026.