Mustafa Kareem Abid Al-Anbari, and Shatha Abdul Hussein Jaber. “The Possibility of Determining The Cost of Common Stock on The Basis of Options Theory”. Journal of Madenat Alelem University College, Vol. 13, no. 2, Dec. 2021, pp. 221-40, http://116.203.176.164/index.php/JMAUC/article/view/424.