Gaya APA
Haekal, M, H.
(2008).
Umar Bin Khattab
(
cet. 9)
.
Bogor:
PT. Pustaka Litera AntarNusa.
Gaya MLA
Haekal, Muhammad, Husain.
"Umar Bin Khattab".
cet. 9
Bogor:
PT. Pustaka Litera AntarNusa,
2008.
Text.