Sawitri Iamtrakoon. (1999) Using chitosan from crab shell for industrial wastewater treatment : a case study of electronics industry. Mahidol University,:ม.ป.ท.Sawitri Iamtrakoon. 1999. Using chitosan from crab shell for industrial wastewater treatment : a case study of electronics industry. ม.ป.ท.:Mahidol University,;Sawitri Iamtrakoon. Using chitosan from crab shell for industrial wastewater treatment : a case study of electronics industry. ม.ป.ท.:Mahidol University, 1999. Print.