Sule, B., M. A. Mohd Sani, and B. Mat. “Independent National Electoral Commission and Campaign Financing Monitoring in Nigeria: The 2015 General Elections”. Journal of International Studies, vol. 13, Dec. 2017, pp. 15-31, https://e-journal.uum.edu.my/index.php/jis/article/view/jis2017.13.2.