Yonla, M. N. ., O. A. . Laura, R. J. . Dakung, and D. N. . . Kruslat. “Moderating Role of Self-Starting Behaviour in the Psychological Capital - Self Employment Relationship Among Graduates in Nigeri”. Operations Research Society of Eastern Africa, vol. 11, no. 1, Dec. 2021, pp. 53-68, https://orseajournal.udsm.ac.tz/index.php/orsea/article/view/128.