Udo, E. J., Uto, N. P., Anieting, A. E., Ezugwu, V. O., & Inyang, E. J. (2026). The contribution of some revenue sources to the total expenditure of an oil-producing state in Nigeria. World Journal of Applied Science & Technology, 18(1), 79–83. Retrieved from https://www.ajol.info/index.php/wojast/article/view/334339