1. Faculty of Engineering; Universiti Putra Malaysia; 43400 UPM Serdang Selangor Malaysia
2. Department of Biocomposite Technology; Institute of Tropical Forestry and Forest Products (INTROP); Universiti Putra Malaysia; 43400 UPM Serdang Selangor Malaysia
3. Department of Chemical Engineering; College of Engineering; King Saud University; Riyadh 11421 Saudi Arabia