Sulistyani T, Rachmawati E, Kartika MG. The Role of Competency Certification in Improving the Hard Skills and Soft Skills of Diploma Three Culinary Arts Students. JACA [Internet]. 2026 Jul. 15 [cited 2026 Aug. 4];2(2):47-51. Available from: https://journal.uny.ac.id/publications/jaca/article/view/3148