AL-SHAMMA, S. Transmission of X-rays Fluorescence through Vanadium,Chromium and Managanese. Journal of Education and Science (JES), [S. l.], v. 17, n. 3, p. 73–80, 2005. DOI: 10.33899/edusj.2005.82517. Disponível em: https://rjps.uomosul.edu.iq/index.php/edusj/article/view/18162. Acesso em: 4 aug. 2025.