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