Gaya APA

Haekal, M, H. (2008). Abu Bakr As-Siddiq . Bogor: PT. Pustaka Litera AntarNusa.

Gaya MLA

Haekal, Muhammad, Husain. "Abu Bakr As-Siddiq". Bogor: PT. Pustaka Litera AntarNusa, 2008. Text.