Deakin, Edward B., author
Toppan, 1988
Buku Teks
Sullivan, Kenneth M., author
Van Nostrand Reinhold, 1983
Buku Teks
Sardinas, Joseph L., author
John Wiley & Sons, 1981
Buku Teks
Lambert, Joyce C., author
McGraw-Hill, 1986
Buku Teks
Patton, William E., author
South-Western, 1992
Buku Teks