Adamu, Muhammad, and Mahani Mohammad Abdu Shakur. “The Relationships of Expectancy, Instrumentality and Valence for Motivation in Self-Employment: A Mediation of Entrepreneurial Motivation in Nigeria”. International Journal of Business and Management Future 2, no. 1 (April 4, 2018): 48–54. Accessed April 2, 2025. https://cribfb.com/journal/index.php/ijbmf/article/view/119.