M. Qabel Hamzah, S. Oudah Mezan, A. Nihad Tuama, A. Hasan Jabbar, and M. Arif Agam, “Study and Characterization of Polystyrene/Titanium Dioxide Nanocomposites (PS/TiO2 NCs) for Photocatalytic Degradation Application: a Review”, IJET, vol. 7, no. 4.30, pp. 538–543, Nov. 2018, doi: 10.14419/ijet.v7i4.30.28172.