Sanaullah Mastoi , Wan Ainun Mior Othman ,N. Kumaresan. “Numerical Solutions of Second Order fractionalPDE’s by Using Finite-Difference Method over Randomly Generated Grids”. International Journal of Advanced Science and Technology, Vol. 29, no. 11s, June 2020, pp. 373 -81, http://sersc.org/journals/index.php/IJAST/article/view/19991.