Olusheye Akinfenwa,  Seven step Adams Type Block Method With Continuous Coefficient For Periodic Ordinary Differential Equation.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    December 2011, vol. 60(12). 2072 - 2076
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/2925.