Diehm, William J.
Kritik: menyampaikan dan menerima kritik tanpa menyinggung perasaan = Criticizing
BPK Gunung Mulia, 1990
Buku Teks
Jones, Gareth R.
Contemporary management
McGraw-Hill, Irwin, 2006
Buku Teks
Contemporary management
The McGraw-Hill Co. , 2006
Multimedia
Contemporary management
McGaw-Hill; Irwin, 2006
Multimedia
Meserve, Bruce B.
Contemporary mathematics
Prentice-Hall, 1972
Buku Teks