Wandago, B., A. Mwangi, J. Bozo, R. Mwabonje, and P. Miano. “Applicability of the YouTube As a Pedagogical Tool in Technical and Vocational Education and Training”. Africa Journal of Technical and Vocational Education and Training, Vol. 2, no. 1, Oct. 2017, pp. 106-14, https://afritvet.org/index.php/Afritvet/article/view/41.