Gaya APA
Haekal, Muhammad Husain. (2003).
Umar Bin Khattab .
Bogor:
pustaka lintera antarnusa.
Gaya Chicago
Haekal, Muhammad Husain.
Umar Bin Khattab.
Bogor:
pustaka lintera antarnusa,
2003.
Buku.
Gaya MLA
Haekal, Muhammad Husain.
Umar Bin Khattab.
Bogor:
pustaka lintera antarnusa,
2003.
Buku.
Gaya Turabian
Haekal, Muhammad Husain.
Umar Bin Khattab.
Bogor:
pustaka lintera antarnusa,
2003.
Buku.