Passant Khaled Abbassi; Mohamed Fathy Emam; Reda Amin Elbarkouky; Khaled Mohamed Abdelgaber. A Study for Solving Pseudo-Parabolic Viscous Diffusion, Telegraph, Poisson and Helmholtz PDE Using Legendre-Collocation Method. J. Adv. Res. Appl. Sci. Eng. Tech. 2024, 41, 179-190.