Wala’a Abdul, Mageed Mahdi, و Ahmed M. A. Hadi. "Analysis Flow of Second Order Fluid in a Vertical Channel With Porous Wall by Using the Homotopy Analysis Method (HAM)". مجلة كلية مدينة العلم الجامعة, م 7, عدد 2, ديسمبر، 2015, ص 36-48, http://116.203.176.164/index.php/JMAUC/article/view/142.