1. Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
2. Master in Forensic Sciences, Postgraduate School, Universitas Airlangga, 4-6 Airlangga Rd, Surabaya, Indonesia
3. Human Genetic Laboratory, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
4. Centre of Foundation Studies, Universiti Teknologi MARA, Cawangan Selangor, Kampus Dengkil, Dengkil, Selangor, Malaysia