Cut Malahayati, author
Restu Agung, 2006
Buku Teks
Lax, David A.
The Free Press, 1986
Buku Teks
Scott, Bill, author
Pustaka Binaman Pressindo, 1991
Buku Teks
Robinson, Colin
Gunung Mulia, 1993
Buku Teks
Michael Soon Lee with Sensei Grant Tabuchi
American Management Association, 2007
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