“Photostabilization of Poly (Vinyl Chloride) by Some Schiff Base Derivedfrom 2-amino pyridine”, ANJS, vol. 16, no. 4, pp. 18–28, Jul. 2018, Accessed: Nov. 24, 2024. [Online]. Available: https://mail.anjs.edu.iq/index.php/anjs/article/view/515