Kriplen, Nancy
American Management Association, 2008
eBooks
Nevins, Allan, 1890-1971
Charles Scribner,s Sons, 1940
Buku Teks
Nevins, Allan, 1890-1971, editor
Charles Scribner,s Sons, 1940
Buku Klasik
Manchester, William
Little, Brown, 1959
Buku Teks
Miller, John C.
Stanford University Press, 1965
Buku Teks