Urwick, Lyndall F., author
Issac Pitman, 1957
Buku Teks
Buchman, Joseph, author
Englewood Cliffs, NJ, Prentice-Hall
Buku Teks
Shuchman, Abe
Holt, Rinehart and Winston, Inc., 1963
Buku Teks
Pfammatter, Ulrich, author
Birkhauser, 2000
Buku Teks
Cooke, Steve
Prentice-Hall, 1991
Buku Teks