AHMED, A.; ABEED, A. Preparation of some Thiadiazol compounds 1, 2, 3, 4 derived from Coumarin compounds. Journal of Education and Science, [S. l.], v. 17, n. 3, p. 51–68, 2005. DOI: 10.33899/edusj.2005.82515. Disponível em: https://tanmiyat.uomosul.edu.iq/index.php/edusj/article/view/42308. Acesso em: 8 sep. 2025.