Ogan , Tamunosiki V., and Chrisantus Kanayochukwu Ariche. “A Critical Evaluation of Ayer’s Verification Principle”. Journal of Good Governance and Sustainable Development in Africa 4, no. 1 (July 25, 2021): 23-36. Accessed May 2, 2024. http://journals.rcmss.com/index.php/jggsda/article/view/304.