H. Al-khafaji, Kawther, and Layla Abd al Jaleel Al-Yasiri. “Frontal Chest X-Ray Image Colorization Using Various Mathematical Experimental Equations”. Journal of Kufa-Physics, vol. 11, no. 1, June 2019, pp. 90-100, https://doi.org/10.31257/2018/JKP/2019/110112.