Prihatmadji, Wiwiet, Kiagus Muhammad Faisal, Teddy Setiady, Bakri, and Retno Widowati. “ISO 9001:2015 Certification Audit at PT. Halal Syariah Integrasi and Its Implications for Quality Management Systems”. Best Journal of Administration and Management 2, no. 3 (January 27, 2024): 133–145. Accessed October 2, 2025. https://internationalpublisher.id/journal/index.php/Bejam/article/view/163.