H.BUTTRUS, N.; A.SAEED, I. Synthesis and Characterization of New Complex Salts of some Transition Metals with Pyrrolium Salts. Journal of Education and Science, [S. l.], v. 17, n. 1, p. 1–9, 2005. DOI: 10.33899/edusj.2005.80954. Disponível em: https://edusj.uomosul.edu.iq/index.php/edusj/article/view/41956. Acesso em: 10 sep. 2025.