Gaya APA
Kramers, J.W.. (1989).
Asbuton Resources Of Buton Island .
Jakarta:
PT Virama Karya.
Gaya Chicago
Kramers, J.W..
Asbuton Resources Of Buton Island.
Jakarta:
PT Virama Karya,
1989.
Text.
Gaya MLA
Kramers, J.W..
Asbuton Resources Of Buton Island.
Jakarta:
PT Virama Karya,
1989.
Text.
Gaya Turabian
Kramers, J.W..
Asbuton Resources Of Buton Island.
Jakarta:
PT Virama Karya,
1989.
Print.