“Synthesis, Characterization of Some New 1, 3, 4-Oxadiazole Derivatives Based on 4- Amino Benzoic Acid”. Baghdad Science Journal 13, no. 2.2NCC (June 5, 2016): 0289. Accessed April 28, 2024. https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2774.