Trahair C.S. Richard
Transaction Books, 1984
Buku Teks
Lehner, Robert N., author
Prentice-Hall, 1982
Buku Teks
Lehrer, Robert N., author
Prentice-Hall, 1982
Buku Teks
Hackman, J. Richard
Addison-Wesley, 1980
Buku Teks
Maddi, Salvatore R., author
AMACOM, 2005
Buku Teks