1. Chemical Engineering Department, Faculty of Engineering, Ahmadu Bello University Zaria, Kaduna State, Nigeria.
2. Department of Polymer Technology, Directorate of Polymer and Environmental Technology, Nigerian Institute of Leather and Science Technology, Zaria, Kaduna State, Nigeria
3. Africa Centre of Excellence on New Pedagogies in Engineering Education, Ahmadu Bello University, Zaria, Nigeria
4. Chemical Engineering Department, Faculty of Engineering, Ahmadu Bello University Zaria, Kaduna State, Nigeria