K. Abubakar, K. Abdullahi, K. U.-F. Musa, K. M. Barau, and A. A. Umar, “Cost-Benefit Analysis of Pollution from Transportation and the Economic Justification for Green Transport Policies in Zaria LGA Kaduna State, Nigeria”, FJS, vol. 10, no. 9, pp. 320–328, Jul. 2026, doi: 10.33003/fjs-2026-1009-4694.