1. Abam, F. I., & Unachukwu, G. O. (2015). Vehicular Emissions and Air Quality Standards in Nigeria. European Journal of Scientific Research, 34, 550-560.
2. Achonu, G. (2017). Police Warm Imo Public against Use of Commercial Motorcycle. The Punch. https://punchng.com/police-warn-imo-public-against-use-of-commercial-motorcycle
3. Adeyanju, A. A., & Manohar, K. (2017). Effects of Vehicular Emission on Environmental Pollution in Lagos. Journal of Scientific Issues, Research and Essays, 5, 33-51.
4. Ajiere, S., Diagi, B. E., & Edokpa, D. O. (2021). Impact of Climate Change Variability on Sustainable Agriculture in Imo State, Nigeria. Journal of Geographical Research, 4, 9-17. https://ojs.bilpublishing.com/index.php/jgr9-17
5. Urbanization, cities, and health: The challenges to Nigeria – A review