Basim A. Hassan, D., Dr., O. M. Esmaeel, and Omer. “A New Sufficient Descent Conjugate Gradient Method for Nonlinear Optimization”. IRAQI JOURNAL OF STATISTICAL SCIENCES, vol. 14, no. 1, June 2025, pp. 12-24, https://rjps.uomosul.edu.iq/index.php/stats/article/view/20734.