H. Ali, Sinan. “Photometric Properties of Isolated Spiral Galaxies NGC 4800 and NGC 2715”. Iraqi Journal of Science 57, no. 3A (March 30, 2023): 2096–2103. Accessed July 1, 2026. https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/9966.