1. Research Unit of Noxious Chemistry and Environmental Engineering, Department of Chemistry, Faculty of Science, University of Dschang, Dschang, Cameroon
2. Institute of Chemistry, Faculty of Process and Systems Engineering, Universität Platz 2, Magdeburg, Germany
3. Department of Process Engineering, Laboratory of Energy, Materials, Modeling and Method, National Higher Polytechnic School of Douala, University of Douala, Douala, Cameroon
4. Biofuel Division, CSIR-Indian Institute of Petroleum, Dehradun, India
5. Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
6. Department of Energy Engineering, Laboratory of Energy, Materials, Modeling and Method, National Higher Polytechnic School of Douala, University of Douala, Douala, Cameroon