1. School of Distance Education, Universiti Sains Malaysia, Penang, Malaysia
2. School of Chemical Sciences, Universiti Sains Malaysia, Penang, Malaysia
3. Section of Bioengineering Technology, Universiti Kuala Lumpur (UNIKL) MICET, Kuala Lumpur, Malaysia
4. Industrial Biotechnology Research Laboratory, School of Biological Sciences, Universiti Sains Malaysia, Penang, Malaysia