Oji OR. The Challenges of Internal Party Democracy to Nigerian Democratic Process: A Study of PDP and APC (1999-2023). Direct Res. J .Soc. Sci. Edu. Studies. 2024;12(3):1-17. Accessed October 14, 2026. https://www.journals.directresearchpublisher.org/index.php/drjsses/article/view/262