Ash-Shalabi, A. M. (2013). Biografi Umar bin Al-Khathab. Pustaka Al-Kautsar.
Chicago Style (17th ed.) CitationAsh-Shalabi, Ali Muhammad. Biografi Umar Bin Al-Khathab. Pustaka Al-Kautsar, 2013.
MLA (8th ed.) CitationAsh-Shalabi, Ali Muhammad. Biografi Umar Bin Al-Khathab. Pustaka Al-Kautsar, 2013.
Warning: These citations may not always be 100% accurate.