Hotton, Geoffrey
Tavistock Publications in association with Bath University Press, 1972
Buku Teks
Newman, William H., author
Prentice-Hall of Japan, 1963
Buku Teks
Kast, Fremont Ellsworth, author
McGraw-Hill, 1979
Buku Teks
DeGreene, Kenyon B., author
John Wiley, 1982
Buku Teks
Becker, Selwyn W. (Selwyn William), 1929-, author
Elsevier, 1975
Buku Teks