Ferguson, C. E., author
Duke University Press, 1964
Buku Teks
Branson, William H., author
Harper & Row, 1979
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