APA Format
The beauty of nature : an essential guide to Kepulauan Riau
. (2012). Jakarta :: Kepritourism,.
MLA Format
.
The beauty of nature : an essential guide to Kepulauan Riau
. Jakarta :: Kepritourism,, 2012
Chicago Format
. The beauty of nature : an essential guide to Kepulauan Riau. Jakarta :: Kepritourism,, 2012.