Ichtiar Baru-van Hoeve, 1989
Buku Referensi
Hay, John E., editor
W.W. Norton & Co., 1991
Buku Referensi
Audubon, John James, author
Macmillan, 1985
Buku Referensi
Miller, Melanie Ann
Garland Publishing, 1986
Buku Referensi
Jepson, Paul
Periplus Edition, 1997
Buku Referensi