Abbas Yakubu, Usman, Mustafa Mamat, Mohamad Afendee Mohamed, Puspa Liza Ghazali, and Mohd Rivaie. “Secant Condition Free of a Spectral Hestenses-Stiefel (SHS) Conjugate Gradient Method and Its Sufficient Descent Properties”. International Journal of Engineering & Technology 7, no. 3.28 (August 17, 2018): 312–315. Accessed May 1, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/23467.