Gaya APA
Keutamaan Khalifah Abu Bakar Ash Shiddieq. (1978).
:
.
Gaya Chicago
Keutamaan Khalifah Abu Bakar Ash Shiddieq.
.
:
,
1978.
Text.
Gaya MLA
Keutamaan Khalifah Abu Bakar Ash Shiddieq.
.
:
,
1978.
Text.
Gaya Turabian
Keutamaan Khalifah Abu Bakar Ash Shiddieq.
:
,
1978.
Print.