S. ISMMAEEL, S. Synthesis of five membered ring hetero cyclic compounds derived from methyl-6- methyl-2- oxo-4-substituted 1,2,3,4- tetrahydro pyrimidine-5-carboxylate. Journal of Education and Science (JES), [S. l.], v. 27, n. 2, p. 1–14, 2018. DOI: 10.33899/edusj.2018.147571. Disponível em: https://ojs.uomosul.edu.iq/index.php/edusj/article/view/23839. Acesso em: 6 aug. 2025.