العربيد . ن. ., & جانم م. . (2021). Evaluating The Performance Of The International Investment Portfolio Of A Sample Of US Government Treasury Bonds Using The Return And Risk Model To Rationalize The Investment Decision ((An Analytical Study)). Tishreen University Journal- Economic and Legal Sciences Series, 43(2). Retrieved from https://journal.tishreen.edu.sy/index.php/econlaw/article/view/10523