JOURNAL, B. S. Synthesis and Characterization of New Polyimide Contain Heterocyclic : Entesar O. Al-Tamimi|Thanaa M. Al-Mouamin. مجلة بغداد للعلوم, Iraq, Baghdad, v. 10, n. 4, p. 1203-1210, 2013. DOI: 10.21123/bsj.2013.10.4.1203-1210. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2833. Acesso em: 18 2021.