Wiyono, Silitonga RYH, Heryanto D. The Influence of ISO 9001: 2015 Quality Management System Implementation on Marketing Performance at PT Timah Tbk. J. Man. Stu. Dev. [Internet]. 2025 Mar. 10 [cited 2026 Oct. 8];4(01):24-33. Available from: https://journal.iistr.org/index.php/JMSD/article/view/770