El-telbani, Chadi Ismail, and Saria Abdechakour El-taouil. “Modeling and Estimation of Financial Time Series Using Long Memory Model (Palestine Stock Market As a Model)”. Finance and Business Economies Review, vol. 5, no. 1, May 2021, pp. 113-30, https://jiamcs.centre-univ-mila.dz/index.php/fber/article/view/496.