Carnegie, Dale, 1888-1955, author
Dale Carnegie & Associates, 1984
Buku Teks
Pearson, Barrie, author
Mercurry, 1991
Buku Teks
Mackay, Harvey, author
Tian xia wen hua chu ban gong si, 1988
Buku Teks
McFarlan, Franklin Warren, author
Macmillan, 1970
Buku Teks
Wilson, Jerry S., author
American Management Association;, 2008
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