P, Kumar, et al. “Physicochemical Characterization of Solid Dispersions of Cefdinir With PVP K-30 and PEG 4000”. International Journal of Pharmaceutical Sciences and Nanotechnology(IJPSN), vol. 3, no. 2, Aug. 2010, pp. 948-56, doi:10.37285/ijpsn.2010.3.2.8.