Gold, Ed.
New York, N.Y. Fairchild c.1963,
Buku Teks
Hankin, Harriet, author
[American Management Association, ], 2005
eBooks
editors, T.N. Ananthakrishnan, A. Raman
Oxford and IBH, 1988
Buku Teks
Buskirk, Richard Hobart, 1927-, author
McGraw-Hill, 1979
Buku Teks
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