Gaya APA

Haekal, M, H. (2001). Abu Bakr As-Siddiq . JAKARTA: PT. Pustaka Litera AntarNusa.

Gaya MLA

Haekal, Muhammad, Husain. "Abu Bakr As-Siddiq". JAKARTA: PT. Pustaka Litera AntarNusa, 2001. Text.