“Synthesis and Characterization of Some New 2,5-Disubstituted- 1,3,4-Oxadiazole Derivatives Containing Antipyrine Moiety”. Journal of Zankoy Sulaimani - Part A 18, no. 2 (June 20, 2016): 11–26. Accessed April 18, 2024. https://jzs.univsul.edu.iq/index.php/jzs/article/view/jzs-10501.