Butkov, Eugene, author
Addison-Wesley, 1968
Buku Teks
Carroll, Robert, author
North-Holland, 1991
Buku Teks
Patty, C. Wayne, author
PWS Publishing, 1993
Buku Teks
Mansfield, Maynard J., author
Robert E. Krieger, 1972
Buku Teks
Sims, Benjamin T., author
Macmillan, 1976
Buku Teks