RAMACHANDRAN, K.L. Synthesis and Characterization of 2- and 4-Substitued Pyridine Carbothionamides and 2- and 4-Pyridinethio Carbonyl Ureas. Asian Journal of Chemistry, [S. l.], v. 17, n. 3, p. 1559–1563, 2016. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/14032. Acesso em: 30 jun. 2024.