Ahmad Zaki, Dr. Engku, Akidah pemahaman & perpecahan umat sepanjang zaman / Dr. Engku Ahmad Zaki - Kuala Lumpur : Mustread Sdn. Bhd., 2012 - 183 pages : no illustrations ; 23 cm includes verses of Qur'an includes hadith includes bibliographical references and index ISBN: 9789675426957 (paperback) Subjects--Topical Terms: Islam --Doctrines LC Class. No.: BP166 A36 2012