Shell, M. Scott Michael Scott, 1978-
Cambridge University Press, 2015
Buku Teks
Parsons, Robert
Harper & Row, 1974
Buku Teks
Bernot, Alain
John Wiley & Sons, Ltd., 2004
Buku Teks
Barnes, J. Wesley
McGraw-Hill, 1994
Buku Teks
Abrami, Philip C.
Allyn and Bacon, 2001
Buku Teks