KH. AHMAD, A.; R. BUTTI, L. Synthesis of some azetidonone and 1, 3-oxazepine deritives from thymol. Journal of Education and Science, [S. l.], v. 26, n. 4, p. 40–46, 2013. DOI: 10.33899/edusj.2013.89960. Disponível em: https://edusj.uomosul.edu.iq/index.php/edusj/article/view/41722. Acesso em: 10 sep. 2025.