Dr. Amir Ullah Khan, and Muhammad Abdul Haq. “Children Heath Security and Financial Implications of Polio Virus in Khyber Pakhtunkhwa, Pakistan: Islamic Perspective”. Al-Azhār, vol. 1, no. 2.2, Dec. 2015, pp. 36-66, http://www.al-azhaar.org/index.php/alazhar/article/view/463.