Reid, Sue Titus, author
Holt, Rinehart and Winston, 1985
Buku Teks
edited by Jerome H. Skolnick, Jane L. Scheiber
Publisher's, 1977
Buku Teks
Sheley, Joseph F., author
Wadsworth, 1987
Buku Teks
edited by Vincenzo Ruggiero, Nigel South, Ian R. Taylor
Routledge , 1998.
Buku Teks
Savitz, Leonard D., author
John Wiley & Sons, 1978
Buku Teks