edited by Daryle H. Busch
John Wiley & Sons, 1980
Buku Teks
edited by Bodie E. Douglas
John Wiley & Sons, 1978
Buku Teks
edited by John P. Fackler
John Wiley & Sons, 1982
Buku Teks
Bowser, James R.
Brooks/Cole, 1993
Buku Teks
Mark, James E.
Prentice Hall International, 1992
Buku Teks