Al-Hajri, S. and Mahmood, S.M. and Abdulrahman, A. and Abdulelah, H. and Akbari, S. and Saraih, N.  (2019) An experimental study on hydrodynamic retention of low and high molecular weight sulfonated polyacrylamide polymer.  Polymers, 11 (9).   ISSN 20734360