Zichy, Shoya, author
American Management Association, 2007
eBooks
Tieger, Paul D., author
Litle, Brown, 2014
Buku Teks
Anderson, Maureen, 1958- , author
American Management Association, 2009
eBooks
Coon, Horace
A Signet Key Book, 1954
Buku Teks
Fournies, Ferdinand, author
McGraw-Hill, 2003
Buku Teks