Paul, Richard S., author
Reston Publishing, 1983
Buku Teks
Smith, Karl J., author
Brooks/Cole, 1985
Buku Teks
Smith, Karl J., author
Brooks/Cole, 1976
Buku Teks
Ferguson, Ronald D., author
Macmillan, 1975
Buku Teks
Barnett, Raymond A., author
McGraw-Hill, 1984
Buku Teks