SULIMAN , Nawal Mahgoub; MOHAMMED, Abuelgasim Abbaker Abed Elrasoul; EL HASSSN , El Jali El Obeid. Preparation of some polyamides of diaminodibenzo-18-crown-6 and Studying their liquid crystalline properties: تحضير بعض البولي اميدات لثنائي امينو ثنائي بنزو-18-تاجي-6 ودراسة خواصها البلورية السائلة. Journal of Faculty of Education, [S. l.], v. 6, 2021. DOI: 10.53332/jfe.v6i.365. Disponível em: http://onlinejournals.uofk.edu/index.php/JFE/article/view/365. Acesso em: 4 oct. 2025.