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