A. B. Karim, P. S. Abdalqader, Z. T. Najim, A. M. Salhd, and O. Y. Abdulhammed, “Color Image Encryption with a Novel Technique and Chaotic Singer Map”, SJUOZ, vol. 9, no. 3, pp. 158–162, Sep. 2021, doi: 10.25271/sjuoz.2021.9.3.816.