Gramedia Percetakan, {s.a.}
Majalah, Jurnal, Buletin
National Geographic Society,
Majalah, Jurnal, Buletin
National Geographic Partners, {s.a.}
Majalah, Jurnal, Buletin
Macdonald, Phil, author
National Geographic, 2009
Buku Teks
Nasional Geographic, 2009
Buku Teks