Gaya APA
Batubara, Faisal. (2000).
International encyclopedia of government and politics(Volume 1-2) .
:
.
Gaya Chicago
Batubara, Faisal.
International encyclopedia of government and politics(Volume 1-2).
:
,
2000.
Printing.
Gaya MLA
Batubara, Faisal.
International encyclopedia of government and politics(Volume 1-2).
:
,
2000.
Printing.
Gaya Turabian
Batubara, Faisal.
International encyclopedia of government and politics(Volume 1-2).
:
,
2000.
Printing.