Trainor, Colin
Yayasan WWF Indonesia, 2000
Buku Teks
Coates, Brian J., author
Birdlife International, 2000
Buku Teks
Holmes, Derek, author
Puslitbang Biologi, 1999
Buku Teks
Mackinnon, John Ramsay, author
Gadjah Mada University Press , 1993
Buku Teks
Holmes, Derek, author
Puslitbang Biologi LIPI, 1999
Buku Teks