APA Style

Asyur, M, A. (2002). Khotbah dan wasiat Umar Ibnul Khaththab . Jakarta: Gema Insani Press.

MLA Style

Asyur, Muhammad, Ahamad. "Khotbah dan wasiat Umar Ibnul Khaththab". Jakarta: Gema Insani Press, 2002. Text.