“Effect of Active Galactic Nuclei (AGN) on the Photometric and Morphologic Properties of NGC 4414 and NGC 4369 Spiral Galaxies”.
Al-Nahrain Journal of Science, vol. 22, no. 1, Mar. 2019, pp. 62-73,
https://anjs.edu.iq/index.php/anjs/article/view/2099.