WADI, Hala Abd Alsahib. Influence of Gamma Radiation on Some Optical Properties and Urbach Energy of (PMMA- Doped Red Methyl) Films. Ibn AL-Haitham Journal For Pure and Applied Sciences, Baghdad, Iraq., v. 26, n. 3, p. 219–224, 2017. Disponível em: https://www.jih.uobaghdad.edu.iq/index.php/j/article/view/430. Acesso em: 15 aug. 2025.