Y. BAYATI, A., E. T. HAMED, and H. Th. Chilmerane. “New Projection Matrix for the Stander Conjugate Gradient Method”. IRAQI JOURNAL OF STATISTICAL SCIENCES, vol. 13, no. 3, June 2025, pp. 108-17, https://rjps.uomosul.edu.iq/index.php/stats/article/view/20865.