Galal I. El–Baghdady et al. 2021. Determination of Legendre–Gauss–Lobatto Pseudo–spectral Method for One–Dimensional Advection–Diffusion Equation. Current Topics on Mathematics and Computer Science Vol. 4. (Jul. 2021), 27–40. DOI:https://doi.org/10.9734/bpi/ctmcs/v4/10245D.