Mina, Eli, author
[American Management Association;, ], 2002
eBooks
Wilson, Shauna, author
American Management Association, 2009
eBooks
Shaw, Sebag
Macdonald and Evans, 1979
Buku Teks
Whipps, Roy, author
Business Books, 1969
Buku Teks
Stemerding, A.H.S.
LPPM, 1978
Buku Teks