“SYNTHESIS AND PHOTOCHEMICAL STUDY OF POLY(VINYL CHLORIDE) - 1,3,4-OXADIAZOLE AND 1,3,4-THIADIAZOLE”, ANJS, vol. 10, no. 1, pp. 7–12, Jun. 2007, Accessed: May 17, 2024. [Online]. Available: https://anjs.edu.iq/index.php/anjs/article/view/1484