YASEEN, Nour Mohammed Hasan; AHMED, Ahmed Kamal. Plotting the Profiles of Cartesian Surfaces by Ray-tracing. Al-Nahrain Journal of Science, [S. l.], v. 17, n. 2, p. 122–127, 2018. Disponível em: https://mail.anjs.edu.iq/index.php/anjs/article/view/451. Acesso em: 22 may. 2026.