edited by Levis D. McCullers, Richard G. Schroeder
John Wiley & Sons, 1982
Buku Teks
Diamond, Michael A.
South-Western Publishing, 1993
Buku Teks
edited by Richard G. Schroeder, Levis D. McCullers and Myrtle Clark
John Wiley & Sons, 1987
Buku Teks
edited by Richard G. Schroeder, Myrtle W. Clark
Wiley, 1998
Buku Teks
Jennings, A.R.
ELBS, 1993
Buku Teks