NIEF, Olfat A. Synthesis and Identification of Heterocyclic Compounds (Oxazepine, Tetrazole) Derived from Benzidine as Photostabilizing for Poly vinyl chloride. Al-Mustansiriyah Journal of Science, Baghdad, Iraq, v. 28, n. 2, p. 108–118, 2018. DOI: 10.23851/mjs.v28i2.521. Disponível em: https://mjs.uomustansiriyah.edu.iq/index.php/MJS/article/view/521.. Acesso em: 3 may. 2024.