., S. M. R. “Numerical Solution of Eighth Order Boundary Value Problems by Petrov-Galerkin Method With Quintic B-Splines As Basic Functions and Septic B-Splines As Weight Functions”. International Journal of Engineering and Computer Science, vol. 5, no. 9, Aug. 2016, http://ijecs.in/index.php/ijecs/article/view/2441.