APA Style
Center, V, S, T.
(1987).
Buku Panduan Kursus Teknik Sabo
.
Yogyakarta:
Volcanic Sabo Technical Center.
MLA Style
Center, Volcanic, Sabo, Technical.
"Buku Panduan Kursus Teknik Sabo".
Yogyakarta:
Volcanic Sabo Technical Center,
1987.
Text.