Pace, Donald M.
Burgess , 1950
Buku Teks
editor, J. Larry Jameson
McGraw-Hill, 2017
Buku Teks
Turner, C. Donnell
Airlangga University Press, 1988
Buku Teks
Hadley, Mac E.
Prentice-Hall, 2007
Buku Teks
Bagdade, John D., editor; Braverman, Lewis E., editor; Halter, Jeffrey B., editor; Horton, Edward S., editor; Kannan, C.R., editor
Bagdade, John D, 1990
Buku Referensi