Gaya APA

Islam, H., Aziz, R. (2011). Serial bebas hutang debt & riba fre module guide (Cet. 1). Bogor: Al-Azhar Fresh.

Gaya MLA

Islam, Haris., Aziz, Rosyid. "Serial bebas hutang debt & riba fre module guide". Cet. 1 Bogor: Al-Azhar Fresh, 2011. KONTEN GERBANG SALAM.