Islam, M Amirul, Sefaly Khatun, and MA Bakr. 2008. “Toxicological Study of Malic Acid-Phthalic Acid-Propane- 1,2-Diol Copolyester”. Journal of Agriculture &Amp; Rural Development 5 (1):150-56. https://doi.org/10.3329/jard.v5i1.1472.