KASSIUM, Y. A.; HUSSEIN, K. A. A. Synthesis and characterization of some new heterocyclic compounds with two Heteroatom’s (Nitrogen) in their cyclic. University of Aden Journal of Natural and Applied Sciences, [S. l.], v. 23, n. 2, p. 355–374, 2019. DOI: 10.47372/uajnas.2019.n2.a08. Disponível em: https://uajnas.adenuniv.com/index.php/uajnas/article/view/34. Acesso em: 16 sep. 2024.