Ivancevich, John M., author
BPI/Irwin, 1989
Buku Teks
Riggs, James L., author
McGraw-Hill, 1974
Buku Teks
Sondeno, Stanley R., author
Business Publications, 1985
Buku Teks
Koontz, Harold, author
McGraw-Hill, 1959
Buku Teks
Koontz, Harold, author
McGraw-Hill, 1964
Buku Teks