Anderson, A.J., author
RR.Bowker Company, 1974
Buku Teks
Scales, Pat R., author
[American Management Association, ], 2009
eBooks
Jones, Barbara M., author
[American Management Association, ], 2009
eBooks
Sakharov, Andrei D.
Norton & Company, 1968
Buku Teks
McNair, Malcolm P., author
McGraw-Hill, 1949
Buku Teks