Okeyea, Chris Chuks. “The Impact of Leadership Styles on Employee Motivation and Productivity in Public Sector in Delta State”. Research Journal of Management Practice 5, no. 5 (July 13, 2025): 14–29. Accessed October 8, 2026. https://www.openjournals.ijaar.org/index.php/rjmp/article/view/1339.