Nuraini Asriati, Munawar Thoharudin, Syamsuri and Daniel Dike. “Implementation of 4D Learning and ADDIE Model to Increase Entrepreneurship Competencies”. International Journal of Advanced Science and Technology 29, no. 08 (May 28, 2020): 854 - 861. Accessed September 21, 2021. https://sersc.org/journals/index.php/IJAST/article/view/19236.