William Warren ... [and others] ; phographer, Luca Invernizzi Tettoni
Periplus editions, 1997
Buku Referensi
Hutton, Wendy
Periplus Editions, 1996
Buku Referensi
Tate, Desmond, author
Archipelago Press, 2000
Buku Referensi
Hutton, Wendy
Periplus, 1997
Buku Referensi
Koninlijk Institut voor de Tropen, 1992,
Majalah, Jurnal, Buletin