“Sy nthesis of Some New Schifrs-Bases Derived From 2-(4-m ethoxy phenyl)-5- (4-amino phenyl)-1,3,4-0xadiazole”, IHJPAS, vol. 19, no. 4, pp. 58–66 E, Dec. 2017, Accessed: May 04, 2024. [Online]. Available: https://jih.uobaghdad.edu.iq/index.php/j/article/view/1667