Abd, S. K. . “Solutions To a Parabolic Equation Based on Polynomials P_1,P_2 and P_3 in the Square Domain Using Galerkin Method”. CENTRAL ASIAN JOURNAL OF MATHEMATICAL THEORY AND COMPUTER SCIENCES, vol. 5, no. 3, July 2024, pp. 132-43, doi:10.51699/cajmtcs.v5i3.639.