Kezuhudan Umar Abdul Aziz kesederhanaan Nik Abdul Aziz - Wan Ji Wan Husin; Saifulamri M. Hussin (Sungai Buloh, Selangor : Kemilau Publika, 2013)
Includes bibliographical references
Keywords: 'Umar ibn 'Abd al-'Aziz, -- Caliph, -- d. 720; Islamic leadership; Leadership -- Religious aspects -- Islam; Nik Abdul Aziz Nik Mat, -- Dato' Haji, -- 1931-.