العربيد . ن. ., and جانم م. . “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))”. Latakia University Journal - Economic and Legal Sciences Series, vol. 43, no. 2, May 2021, https://journal.latakia-univ.edu.sy/index.php/econlaw/article/view/10523.