Effect of Polyethylene Glycol Methyl Ether Methacrylate on the Biodegradability of Polyvinyl Alcohol/Starch Blend Films oleh Asylzat Iskalieva, Mateyev Yesmurat, Khaldun M. Al Azzam, Dana Ainakulova, Yerzhanov Yerbolat, El-Sayed Negim, Mohamad Nasir Mohamad Ibrahim, Yeligbayeva Gulzhakhan