edited by Donnie J. Self
Teagle & Little, 1977
Buku Teks
edited by Steven Spirn and David W. Benfer
Aspen Systems Corporation, 1982
Buku Teks
Smith, Roy H., author
Routledge, 2017
Buku Teks
edited by Rosalind S. Miller, and Helen Rehr
Prentice-Hall, 1983
Buku Teks
edited by Charles D. Schewe
Haworth Press, 1991
Buku Teks