Gaya APA

Santoso, I, B. (2008). Abu Bakar Ash-Shiddiq . Yogyakarta: PT. Pustaka Insan Madani.

Gaya MLA

Santoso, Iman, Budhi. "Abu Bakar Ash-Shiddiq". Yogyakarta: PT. Pustaka Insan Madani, 2008. Text.