1. Department of Applied Chemistry and Chemical Engineering, University of Dhaka, Dhaka 1000, Bangladesh
2. Limerick Pulp and Paper Centre, University of New Brunswick, Fredericton E3B 5A3, Canada
3. Pulp and Paper Research Division, Bangladesh Council of Scientific and Industrial Research Laboratories, Dhaka, Dr. Qudrat-i-Khuda Road, Dhaka 1205, Bangladesh