Jennings, Eugene E.
McGraw-Hill, 1960
Buku Teks
Jennings, Eugene E.
N.Y. Harper & Brothers Publishers , 1960
Buku Teks
Underhill, Brian O., author
Berrett-Koehler Publishers, Inc., 2007
Buku Teks
Tegar Rahmanto, author
2016
UI - Skripsi (Membership)
Frigon, Normand L.
N.Y. American Management Association , 1996
Buku Teks