Hays, William Lee, 1926-1995, author
Holt, Rinehart and Winston, 1973
Buku Teks
Stevens, James, author
Lawrence Erlbaum Associates, 1986
Buku Teks
Gelbaum, Bernard R., author
W.B. Saunders, 1969
Buku Teks
Corty, Eric W., author
Mosby Elsevier, 2007
Buku Teks
Siegel, Sidney, author
McGraw-Hill , 1988
Buku Teks