synthesis and study of some mixed ligand complexes of caffeine. Baghdad Science Journal, Iraq, Baghdad, v. 3, n. 2, p. 314–320, 2006. DOI: 10.21123/bsj.2006.705. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/705.. Acesso em: 24 nov. 2024.