Sadek, Elham M. “?EFFECT OF EpOXIDES ON ULTRAVIOLET DEGRADATION OF POLYVINYL CHLORIDE”. Biological Sciences - PJSIR 41, no. 2 (April 20, 1998): 75–80. Accessed July 3, 2024. https://v2.pjsir.org/index.php/biological-sciences/article/view/2236.