Miller, Glenn H.
Canfield Press, 1972
Buku Teks
Moore, John W., author
McGraw-Hill, 1987
Buku Teks
Mortimer, Charles E.
Publishing, 1983
Buku Teks
Pierce, James B., author
Houghton Mifflin, 1970
Buku Teks
Russell, John B., author
McGraw-Hill, 1981
Buku Teks