O. Iwegbu, N. C. Olunkwa, I. C. Nwaogwugwu, A. T. Odeleye, E. S. Odior, and N. I. Nwokoma, “Impact of user fees and levies on community development projects in Southwestern Nigeria: Case of Osun and Oyo States”, Tanzanian Economic Review, vol. 14, no. 2, pp. 93-113, Dec. 2024.