Ogundele, Sakiru. “The Entrepreneurial Ambition of Retirees Reflects Their Entrepreneurial Orientation. A Systematic Review: Introduction, Methodology, Result and Discussion, Discussion, and Conclusion. ”. International Journal of Innovation and Business Strategy (IJIBS), vol. 19, no. 2, Dec. 2025, https://ijibs.utm.my/index.php/ijibs/article/view/162.