Elzamly, A., N. Messabia, M. Doheir, S. A. Naser, N. B. M. Yaacob, M. Al-Aqqad, and M. Alazzam. “Assessment Risks for Managing Software Planning Processes in Information Technology Systems”. International Journal of Advanced Science and Technology, Vol. 28, no. 1, Sept. 2019, pp. 327 -38, http://sersc.org/journals/index.php/IJAST/article/view/398.