Gaya APA
Yulianty, R. (2010).
Abu Bakar As-Shiddiq & Umar bin Khatab : Seri Sahabat Nabi (cet. 1).
Surabaya:
PT JePe Press Media Utama.
Gaya MLA
Yulianty, Rani.
"Abu Bakar As-Shiddiq & Umar bin Khatab : Seri Sahabat Nabi".
cet. 1
Surabaya:
PT JePe Press Media Utama,
2010.
Text.