Gaya APA
Haekal, Muhammad Husain. (2011).
Umar Bin Khatab (Cet.12).
Hoboken, NJ:
Javalitera.
Gaya Chicago
Haekal, Muhammad Husain.
Umar Bin Khatab.
Cet.12
Hoboken, NJ:
Javalitera,
2011.
Text.
Gaya MLA
Haekal, Muhammad Husain.
Umar Bin Khatab.
Cet.12
Hoboken, NJ:
Javalitera,
2011.
Text.
Gaya Turabian
Haekal, Muhammad Husain.
Umar Bin Khatab.
Cet.12
Hoboken, NJ:
Javalitera,
2011.
Print.