Combating illegal trade in precious metals and gemstones: international strategies and regulatory frameworks. INTERNATIONAL CONFERENCE OF NATURAL AND SOCIAL-HUMANITARIAN SCIENCES, [S. l.], v. 2, n. 6, p. 10–15, 2025. Disponível em: https://universalconference.us/index.php/ICNSHS/article/view/4987. Acesso em: 16 jun. 2026.