TAWFIQ, S.; MAJEED KHURSHEED, A.; KHALIL ABDULLA, T. Determination of vanadium in Natural gas using graphite furnace atomic absorption spectrometry (GFAAS). Journal of Education and Science (JES), [S. l.], v. 26, n. 5, p. 64–74, 2013. DOI: 10.33899/edusj.2013.163056. Disponível em: https://ojs.uomosul.edu.iq/index.php/edusj/article/view/23200. Acesso em: 6 aug. 2025.