P. Nwaerema, U. I. Ahmad, S. Bawa, and B. Ayuba, “Assessment of Dry Season Ground Level Vehicular Air Pollution in Minna Metropolis, Niger State, Nigeria ”, Kaduna J. Geogr., vol. 7, no. 1, pp. 441–448, Jan. 2026, doi: 10.47514/kjg.2025.07.01.047.