ميثم ربيع هادي, زينب شلال عكار. The use of method (EGP) to build The optimum shares portfolio Under the two methods Allowing short selling and not allow -An analytical study In the Iraq Stock Exchange. IJAS [Internet]. 2024 Dec. 28 [cited 2025 Jan. 18];12(48):86-137. Available from: https://mail.journals.uokerbala.edu.iq/index.php/ijas/article/view/2681