Saeed, Asrar A. “Optical Properies of Polystyrene Films Doped by Methyl Green Dye”. Al-Mustansiriyah Journal of Science 28, no. 1 (November 19, 2017): 158–163. Accessed April 21, 2025. https://mjs.uomustansiriyah.edu.iq/index.php/MJS/article/view/327.