Cohen, William A., 1937- , author
American Management Association, 2008
eBooks
Adler, Mortimer Jerome, 1902-2001, author
Holt, Rinehart and Winston, 1967
Buku Teks
Nugroho Mahardhita, author
Fakultas Teknik Universitas Indonesia, 2022
UI - Skripsi (Membership)
Cohen, Robin, author
John Wiley & Sons, 2016
Buku Teks
edited by Kathryn Woodward
The Open University, 1997
Buku Teks