edited by Gayton E. Germane
Addison-Wesley, 1986
Buku Teks
edited by David L. Cleland and William R. King
Van Nostrand Reinhold, 1983
Buku Teks
Hayes, James L., author
Amacom , 1983
Buku Teks
Huseman, Richard C., author
Allyn and Bacon, 1977
Buku Teks
Bernard, Chester I., author
Harvard University Press , 1966
Buku Teks