1. Department of Biochemistry, Faculty of Medicine, University of Ruhuna, Galle, Sri Lanka
2. Department of Chemistry, Faculty of Science, University of Peradeniya, Peradeniya, Sri Lanka
3. Herbal Section, Industrial Technology Institute, Colombo, Sri Lanka
4. Department of Horticulture and Landscape Gardening, Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, Sri Lanka