AHMED, Bushra A. Newtonian and modified newtonian gravitational simulation of spiral galaxies. Iraqi Journal of Physics, Baghdad, Iraq., v. 11, n. 21, p. 20–27, 2019. DOI: 10.30723/ijp.v11i21.363. Disponível em: https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/363. Acesso em: 13 mar. 2025.