Ogundele, Sakiru, and Umar Haiyat Abdul Kohar. “EntrepreEntrepreneurship Knowledge, Challenges, and Sustainable Entrepreneurship Framework for Retirees: A Systematic Reviewneurship Knowledge, Challenges, and Sustainable Entrepreneurship Framework for Retirees: A Systematic Review: Introduction, Methodology, Result and Discussion, Discussion, and Conclusion. ”. International Journal of Innovation and Business Strategy (IJIBS) 19, no. 2 (December 31, 2024): 1–21. Accessed January 30, 2025. https://ijibs.utm.my/index.php/ijibs/article/view/161.