Mutasher, S. H., and H. S. . Al-Lami. “Chemically Plasticized Chitosan Films by Grafting Succinic Acid: Surface Roughness and Mechanical Properties”. International Journal of Membrane Science and Technology, vol. 9, no. 2, Oct. 2022, pp. 33-39, doi:10.15379/ijmst.v9i2.1046.