Ratna Wardani, Bait Syaiful Rijal,. “Critical Success Factors for E-Learning in Vocational Training: A Comparative Analysis Between ICT Experts, Trainer and Faculty”. International Journal of Advanced Science and Technology 28, no. 16 (December 10, 2019): 720 - 723. Accessed May 4, 2024. http://sersc.org/journals/index.php/IJAST/article/view/1945.