Mintzberg, Henry, author
Harper & Row, 1973
Buku Teks
Mintzberg, Henry, author
The Free Press, 1989
Buku Teks
Mulligan, James G., author
Allyn and Bacon, 1989
Buku Teks
Koontz, Harold, author
Binakawan Study Club, 1969
Buku Teks
Koontz, Harold, author
McGraw-Hill, 1964
Buku Teks