Gaya APA
Guide.., . (2012).
Guide to Kutai national park east Kalaimantan-Indonesia .
Bontang:
Balai Taman Nasional Kutai.
Gaya MLA
Guide.., .
"Guide to Kutai national park east Kalaimantan-Indonesia".
Bontang:
Balai Taman Nasional Kutai,
2012.
Text.