Lee, Youngmin, et al. “A Case Study for Technical and Vocational Education and Training Professional Development Training in Untact Era: Focusing on Official Development Assistance Project in Botswana”. Journal of Technical Education and Training, vol. 13, no. 2, Mar. 2021, pp. 10-24, https://publisher.uthm.edu.my/ojs/index.php/JTET/article/view/8069.