Hassan, Basim A., and Haneen A. Alashoor. “A Modified Spectral Methods for Large-Scale UnconStrained”. Al-Mustansiriyah Journal of Science 29, no. 1 (October 31, 2018): 127–132. Accessed April 20, 2025. https://mjs.uomustansiriyah.edu.iq/index.php/MJS/article/view/576.