Zahra Hatami and  Hesham Ali and  David Volkman,  Evaluating Portfolio Performance by Highlighting Network Property and the Sharpe Ratio in the Stock Market.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2022, vol. 192(12). 752 - 756
    [viewed 07 May 2024]. Available from: https://publications.waset.org/pdf/10012815.