K. Haweel, C. and H. Ammar, S. (2008) “Preparation of Polyvinyl Alcohol from Local Raw Material”, Iraqi Journal of Chemical and Petroleum Engineering, 9(1), pp. 15-21. Available at: http://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/425 (Accessed: 29November2019).