Al-Mukhtar, A. S., and J.N. Jassim. 2017. “Designing A Computer Program to Determine the Points and Planes in 3-Dimensional Projective Space”.
Ibn AL-Haitham Journal For Pure and Applied Sciences 22 (2).
https://jih.uobaghdad.edu.iq/index.php/j/article/view/1223.