Zarina Bibi Ibrahim and  Mohamed Suleiman and  Khairil Iskandar Othman,  Direct Block Backward Differentiation Formulas for Solving Second Order Ordinary Differential Equations.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    April 2008, vol. 16(4). 260 - 262
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/7863.