1. School of Health Sciences; University Sains Malaysia; Health Campus Kubang Kerian 16150 Malaysia
2. Forensic Sciences Department; 30-A, Kamarajar Salai, Mylapore Chennai 600004 India
3. Chemistry Department of Malaysia; Jalan Cherong Lanjut 20300 Kuala Terengganu, Terengganu Malaysia
4. Chemistry Department of Malaysia; Jalan Sultan 46661 Petaling Jaya Malaysia