Ensiklopedi fiqih Umar bin Khathab ra - Qal'aji, Muhammad Rawwas; M. Abdul Mujieb AS (Jakarta : Pt RajaGrafindo Persada, 1999)
Keywords: 'Umar ibn al-Khattab, -- Caliph, -- d. 644; Islam -- Encyclopedias; Islamic law -- History; Islamic law -- Bibliography; Islamic law