Dr.Syed Naeem Badshah, and Dr. Ishfaq Ali. “The Stages and Kinds of Calling and Inviting to Good In the Light of Quran and Sunnah : The Stages and Kinds of Calling and Inviting to Good In the Light of Quran and Sunnah”. Al-Azhār, vol. 1, no. 02, Dec. 2015, pp. 29-46, http://www.al-azhaar.org/index.php/alazhar/article/view/370.