Taylor, Judith Combes, author
[American Management Association, ], 1994
eBooks
Whimbey, Arthur, author
McGraw-Hill, 1981
Buku Teks
Paustiam, anthony D.
Prentice-Hall, 1997
Buku Teks
O`connor, Joseph, author
Thorsons, 1997
Buku Teks
Butterworth-Heinemann, 2013
eBooks