edited by Andrew Heritage
Dorling Kindersley, 2000
Buku Referensi
Barnhart, Clarence
Garden City, New York, Doubleday, 1967
Buku Referensi
Sriro, Andrew I., author
Equinox Publishing, 2006
Buku Teks
Sriro, Andrew I., author
Equinox Pub., , 2005
Buku Referensi
Sriro, Andrew I., author
Equinox Pub, 2006
Buku Referensi