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, [S. l.], v. 26, n. 3, p. 219–224, 2017. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/430.. Acesso em: 6 may. 2024.