Asyur, M. A. (2002). Khotbah dan wasiat Umar Ibnul Khaththab. Gema Insani Press.
Chicago Style (17th ed.) CitationAsyur, Muhammad Ahmad. Khotbah Dan Wasiat Umar Ibnul Khaththab. Gema Insani Press, 2002.
MLA (8th ed.) CitationAsyur, Muhammad Ahmad. Khotbah Dan Wasiat Umar Ibnul Khaththab. Gema Insani Press, 2002.
Warning: These citations may not always be 100% accurate.