Pergamon Press, 1960
Buku Teks
Herbert Jodlbauer, Jan Olhager, Richard Schonberger, editors
[Springer, ], 2012
eBooks
McFarland, Dalton E., author
Collier Macmillan, 1974
Buku Teks
Koontz, Harold, author
McGraw-Hill, 1984
Buku Teks
Drucker, Peter F. (Peter Ferdinand), 1909-2005, author
Harper & Brothers, 1954
Buku Teks