H. Ratho, B. Rathod, K. S. Dev, and A. S. Hariprasad, “Finite element solution of Poisson Equation over Polygonal Domains using a novel auto mesh generation technique and an explicit integration scheme for eight node linear convex quadrilaterals”, int. jour. eng. com. sci, vol. 6, no. 10, pp. 22632–22787, Oct. 2017.