Stanford, Jon D.
John Wiley and Sons Australasia Pty , 1973
Buku Teks
Luckett, Dudley G., author
McGraw-Hill , 1984
Buku Teks
Pesek, Boris P., author
Harvester. Wheatshaf, 1988
Buku Teks
Barger, Harold, author
Rand McNally, 1969
Buku Teks
Suzuki, Yoshio, author
Yale University Press, 1980
Buku Teks