Harris, David P.
McGraw-Hill, 1969
Buku Teks
by John M. Norris ... [and others]
University of Hawaii Press, 1998
Buku Teks
editedby Barbara Kroll
Cambridge University Press, 1990
Buku Teks
editor, Ronald Mackay, Bruce Barkman, R.R. Jordan
Newbury House Publishers, Inc., 1979
Buku Teks
MacMillan/McGraw-Hill , 1997
Buku Teks