Islam, S., Haque, M. and Bakr, A. (2014) “Preparation and Characterization of Phthalic Acid-Propane-1, 2-Diol-Glycerol Co-Polyester as A Biodegradable Polymer”, Journal of Composites and Biodegradable Polymers, 2(2), pp. 80–87. doi: 10.12974/2311-8717.2014.02.02.4.