Ruaa Jameel Kamel, Mohammed Ali Mutar, and Farah Safi Khlewee. “Synthesis and Characterization of New Diacid Monomers and Poly (ester-Imide) S: A Study of Thermal Property Relationship and Solubility”. International Journal of Research in Pharmaceutical Sciences, vol. 10, no. 3, Aug. 2019, pp. 1934-9, https://ijrps.com/home/article/view/3938.