K. YOUNIS, S.; K. SHAKER, M. Synthesis of some New Fused Pyrimidine Compounds. Rafidain Journal of Science, [S. l.], v. 26, n. 1, p. 92–99, 2017. DOI: 10.33899/rjs.2017.139098. Disponível em: https://edusj.uomosul.edu.iq/index.php/rsci/article/view/46445. Acesso em: 10 sep. 2025.