Al-Hamdani, Ali H. “Studying the Spectral Properties of Thin Films of Rhodamine (6G) Dyes Doped Polymer (PMMA) Dissolved in Chloroform”. Iraqi Journal of Physics, vol. 12, no. 23, Feb. 2019, pp. 59-64, https://doi.org/10.30723/ijp.v12i23.339.