U. D. Muhammad, M. B. Sani, and J. N. Bello, “Effect of Fuel Subsidy Removal on Civil Servant Efficiency: Empirical Evidence from Federal Polytechnic Kaura Namoda”, UMYU-JBAM, vol. 1, no. 1 & 2, pp. 280–301, Oct. 2025, doi: 10.56919/jbam.2511.015.