McCandless, George T., author
Prentice-Hall, 1991
Buku Teks
Shapiro, Edward, author
Harcourt Brace Jovanovich, 1982
Buku Teks
Shapiro, Edward, author
Harcourt Brace Jovanovich, 1974
Buku Teks
Shapiro, Edward, author
Harcourt Brace Jovanovich, 1978
Buku Teks
Lindauer, John, author
Free Press, 1968
Buku Teks