Mader, Sylvia S., author
McGraw-Hill, 2010
Buku Teks
Anthony, Robert N. (Robert Newton), 1916-2006, author
Addison-Wesley, 1997
Buku Teks
McDaniel, Carl, author
South Western Cengage Learning, 2012
Buku Teks
Cowles, 1996
Buku Referensi
Breitner, Leslie K.,author
Prentice-Hall, 2013
Buku Teks