Wright, Burton
W.B. Saunders, 1978
Buku Teks
edited by Jerome H. Skolnick, Jane L. Scheiber
Publisher's, 1977
Buku Teks
Sheley, Joseph F.
Wadsworth, 1987
Buku Teks
Tappan, Paul W.
McGraw-Hill, 1960
Buku Teks
Silbermaan, Charles E.
Random House, 1978
Buku Teks