Paquette, Gerard A., author
Holbrook Press, 1975
Buku Teks
Hirst, D.M., author
Macmillan, 1976
Buku Teks
Smith, Karl J., author
Brooks/Cole, 1992
Buku Teks
Smith, Karl J., author
Brooks/Cole, 1985
Buku Teks
Wade, Thomas L., author
McGraw-Hill, 1974
Buku Teks