Schawartz, Bernard
At The University Press, 1955
Buku Teks
Strong, Frank R.
Dennis & Co., 1950
Buku Teks
Fairman, Charles
Henry Holt and Company, 1948
Buku Teks
Mason, Alpheus Thomas,1899-1989
Prentice-Hall, 1964
Buku Teks
Mason, Alpheus Thomas,1899-1989
Prentice-Hall, 1993
Buku Teks