Murphy, Raymond, author
McGraw-Hill , 1979
Buku Teks
edited by Jeannette R. Folta
John Wiley & Sons, 1979
Buku Teks
Wallace, Walter L.
Aldine publishing, 1970
Buku Teks
William, Robin M.
Alfred, 1966
Buku Teks
Benson, Leonard, author
Random House , 1968
Buku Teks