Gaya APA
haekal, M, H.
(2008).
Abu bakar as-siddiq
(
cet.8)
.
bogor:
litera antarnusa.
Gaya MLA
haekal, Muhammad, Husain.
"Abu bakar as-siddiq".
cet.8
bogor:
litera antarnusa,
2008.
Teks.