Kamau, P., D. Odero-Wanga, and C. Munyua. “Effectiveness of Non Formal TVET Programs in Developing Social Skills Competencies Among the Vulnerable Youth in Nakuru County-Kenya”. Africa Journal of Technical and Vocational Education and Training, Vol. 6, no. 1, Feb. 2021, pp. 60-74, http://afritvetjournal.org/index.php/Afritvet/article/view/123.