J. AL-SAADI, Abbas,. Calculation of buildup factor for gamma-ray exposure in two layered shields made of water and lead. Journal of Kufa-Physics, [S. l.], v. 4, n. 1, 2012. Disponível em: https://journal.uokufa.edu.iq/index.php/jkp/article/view/7558. Acesso em: 18 may. 2024.