A. SHEAT, M.; I. MOHAMMED, O. Synthesis of 1,3,4-Oxadiazole Derivatives from Ethyl-2-Piperidone-3-Carboxylate. Journal of Education and Science (JES), [S. l.], v. 25, n. 1, p. 19–25, 2012. DOI: 10.33899/edusj.2012.58997. Disponível em: https://ojs.uomosul.edu.iq/index.php/edusj/article/view/23683. Acesso em: 6 aug. 2025.