Devine, Donald F., author
John Wiley & Sons, 1977
Buku Teks
Connelly, James F., author
Macmillan, 1978
Buku Teks
Ewen, Dale, author
Thomson Brooks/Cole, 2007
Buku Teks
Wheeler, Ruric E., author
Brooks/Cole, 1967
Buku Teks
Wheeler, Ruric E., author
Brooks/Cole, 1970
Buku Teks