“Optical Dispersion Parameters of (PMMA Doped Red Methyl) Irradiated by Gamma Rays”. Journal of the College of Basic Education 18, no. 75 (January 12, 2023): 21–28. Accessed July 18, 2024. https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/9257.