1. Pharmacognosy Research Group, Department of Pharmaceutical Chemistry, Kulliyyah of Pharmacy, International Islamic University Malaysia, Kuantan, Pahang Darul Makmur, Malaysia
2. Faculty of Pharmacy, Airlangga University, Surabaya, Indonesia
3. Department of Pharmacy, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
4. Faculty of Medicine, Universitas Jambi, Jambi, Indonesia