Gaya APA
Mantra, I, B. (1996).
Indonesian Journal of Geography .
Yogyakarta:
The Faculty of Geography Gadjah Mada University Yogyakarta.
Gaya MLA
Mantra, Ida, Bagus.
"Indonesian Journal of Geography".
Yogyakarta:
The Faculty of Geography Gadjah Mada University Yogyakarta,
1996.
.