1. Chemical and Petroleum Option, Science Laboratory Technology Department, University of Jos, Nigeria
2. Centre of Lipids Engineering and Applied Research (CLEAR), Ibnu-Sina Institute for Scientific & Industrial Research (ISI-SIR), Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
3. Chemical Engineering Department, Abubakar Tafawa Balewa University, Bauchi, Nigeria