Black, J. T.
McGraw-Hill, 1991
Buku Teks
Balck, JT
McGraw-Hill, 1991
Buku Teks
Bessant, J.R.
UK NCC Blackwell, 1991
Buku Teks
Scheer, August-Wilhelm, author
Springer-Verlag, 1994
Buku Teks
Gross, John M., author
[American Management Association, ], 2003
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