Shawki Jaber, A., M. RASHEED, and T. Saidani. “The Conjugate Gradient Approach to Solve Two Dimensions Linear Elliptic Boundary Value Equations As a Prototype of the Reaction Diffusion System”. Al-Salam Journal for Engineering and Technology, vol. 3, no. 1, Jan. 2024, pp. 157-68, doi:10.55145/ajest.2024.03.01.014.