Currin, Thomas R., author
Brooks/Cole, 2001
Buku Teks
Martine, Roberta R., author
Prentice-Hall, 1994
Buku Teks
Wohl, Martin, author
McGraw-Hill , 1967
Buku Teks
Matson, Theodore M., author
McGraw-Hill, 1955
Buku Teks
Hobbs, F.D., author
Pergamon Press, 1974
Buku Teks