The Impact of Tin Trade Governance Cases on Community Purchasing Power in Bangka Belitung Province: A Case Study on the Sustainability of MSME. Riwayat: Educational Journal of History and Humanities, [S. l.], v. 9, n. 1, p. 78–85, 2026. DOI: 10.24815/riwayat.v9i1.221. Disponível em: https://ejournal.yaydi.com/index.php/riwayat/article/view/221. Acesso em: 4 feb. 2026.