Kirkpatrick, Larry D., author
Thomson, Brooks, 2007
Buku Teks
Kirkpatrick, Larry D., author
Brooks/Cole Cengage Learning, 2010
Buku Teks
Jewett, John W., author
Harcourt College Publisher, 2001
Buku Teks
Oliver, David, author
Springer-Verlag , 1994
Buku Teks
Bueche, Frederick J., author
McGraw-Hill, 1981
Buku Teks