Eves, Howard, author
Holt Rinehart and Wilson, 1964
Buku Teks
Wade, Thomas L., author
McGraw-Hill, 1974
Buku Teks
Clarkson, Donald R.
The Shoe String Press, 1964
Buku Teks
Kramer, Arthur D., author
McGraw-Hill, 1984
Buku Teks
Whitehead, Alfred North, 1861-1947, author
Oxford University Press, 1969
Buku Teks