WASET
    Amadi Ugwulo Chinyere and  Lewis D. Gbarayorks and  Emem N. H. Inamete,  Modelling an Investment Portfolio with Mandatory and Voluntary Contributions under M-CEV Model.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    December 2022, vol. 192(12). 120 - 125
    [viewed 08 May 2024]. Available from: https://publications.waset.org/pdf/10012839.