edited by Mark Schaller, Christian S. Crandall
Lawrence Erlbaum Associates, 2004
Buku Teks
Wilson, John A. R., author
McGraw-Hill, 1974
Buku Teks
Doob, Leonard William, 1909-, author
Yale University Press, 1964
Buku Teks
Eson, Morris E.
Holt, Rinehart and Winston, 1964
Buku Teks
Statt, David A., author
Routledge, 2000
Buku Teks