1. Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
2. Department of Forestry Science and Biodiversity, Faculty of Forestry and Environment, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
3. Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia Serdang, Selangor, Malaysia