Abdul Aziz Al-Hallawi. (1997). Umar Ibnul Khattab Keputusan Hukum & Fatwa-Fatwanya. Darul Nu'man.
Chicago Style (17th ed.) CitationAbdul Aziz Al-Hallawi. Umar Ibnul Khattab Keputusan Hukum & Fatwa-Fatwanya. Kuala Lumpur: Darul Nu'man, 1997.
MLA (9th ed.) CitationAbdul Aziz Al-Hallawi. Umar Ibnul Khattab Keputusan Hukum & Fatwa-Fatwanya. Darul Nu'man, 1997.
Warning: These citations may not always be 100% accurate.