Extension of the Chebyshev Method of Quassi-Linear Parabolic P.D.E.S With Mixed Boundary Conditions. Baghdad Sci.J [Internet]. 2009 Sep. 6 [cited 2024 May 19];6(3):603-11. Available from: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/1022