Gaya APA

Harahap, Khoirul Amru. (2008). Rahasia bisnis Khadijah sang istri Nabi (2008). : Qultum Media.

Gaya Chicago

Harahap, Khoirul Amru. Rahasia bisnis Khadijah sang istri Nabi. 2008 : Qultum Media, 2008. Buku.

Gaya MLA

Harahap, Khoirul Amru. Rahasia bisnis Khadijah sang istri Nabi. 2008 : Qultum Media, 2008. Buku.

Gaya Turabian

Harahap, Khoirul Amru. Rahasia bisnis Khadijah sang istri Nabi. 2008 : Qultum Media, 2008. Buku.