Ndruru F, Zai KS, Mendrofa MSD, Duha T. Evaluation Of Halal Certification Implementation In Improving Product Quality At CV. Werry Group Gunungsitoli . J. Manag. Econ. Account. [Internet]. 2025 Aug. 9 [cited 2026 Jun. 23];4(2):713-26. Available from: https://jurnalunived.com/index.php/JMEA/article/view/906