RAJENDIRAN, T.V.; ANBUCHELVAN, C. Synthesis and Spectral Studies of Some Azo Polyimides. Asian Journal of Chemistry, [S. l.], v. 20, n. 6, p. 4153–4158, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/18999. Acesso em: 5 nov. 2024.