Bauer, Peter T.
University of Chicago Press, 1966
Buku Teks
Bird, Graham
Macmillan, 1978
Buku Teks
Cauley, Troy Jesse
International Textbook, 1968
Buku Teks
Crane, Burton
Harcourt, Brace, 1956
Buku Teks
Xiang, Junbo, author
Enrich Professional, 2013
Buku Teks