M. Arslan, W. S. Ahmed, and M. . Akhter, Trans., “Volatility, Global Proxy Index, V-A-R: Empirical Study on Pakistan And China Stock Exchanges”, International Journal of Advances in Data and Information Systems, vol. 1, no. 2, pp. 103–115, Oct. 2020, doi: 10.25008/ijadis.v1i2.183.