Laseau, Paul, author
Cahners Books, 1975
Buku Teks
Hall, John Oliver, author
American Book Company, 1958
Buku Teks
Chevallier, Arnaud, author
Oxford University Press, 2016
eBooks
by Arvid R. Eide [and others]
McGraw-Hill, 2002
Buku Teks
Taylor, Judith Combes, author
[American Management Association, ], 1994
eBooks