Al-Agealy Hadi J. ,M, and Al-Saadi Adil. A., M. “Barrier for Charge Transfer at Liquid/Liquid Interface ”. Journal of Madenat Alelem University College, Vol. 4, no. 2, Dec. 2012, pp. 6-17, http://116.203.176.164/index.php/JMAUC/article/view/224.