Mahfud, Tuatul, Mutiara Nugraheni, Pardjono, and Badraningsih Lastariwati. “Validation of the Chefs’ Key Competencies Questionnaire: A Culinary Student Perspective”. Journal of Technical Education and Training 12, no. 4 (December 20, 2020): 27-38. Accessed June 13, 2021. https://publisher.uthm.edu.my/ojs/index.php/JTET/article/view/6129.