Gaya APA
Yulianty, R.
(2010).
Abu Bakar As- Shidiq dan Umar bin Khattab
.
Surabaya:
PT. Jepe Press Media.
Gaya MLA
Yulianty, Rani.
"Abu Bakar As- Shidiq dan Umar bin Khattab".
Surabaya:
PT. Jepe Press Media,
2010.
Text.