Chukwuemeka, Ugbaja Solomon. 2019. “Corporate Social Responsibility: A Case for the Igbo Trade Apprenticeship System (ITAS) As a Sustainable Model of a Startup Incubator for Social Entrepreneurship in Nigeria, Africa”. International Journal of Economics, Business and Management Studies 6 (1):194-213. https://doi.org/10.20448/802.61.194.213.