“Numerical Solution of Fourth Order Boundary Value Problems by Petrov-Galerkin Method with Quartic B-splines as basis functions and Sextic B-Splines as weight functions” (2016) International Journal of Engineering and Computer Science, 5(9). Available at: http://www.ijecs.in/index.php/ijecs/article/view/2515 (Accessed: 5 December 2025).