Musser, Gary L., author
John Wiley & Sons, 2004
Buku Teks
Crouch, Robert L.
Harcourt Brace Jovanovich , 1972
Buku Teks
Ben-Chai, David, author
Sense, 2012
eBooks
Devine, Donald F., author
John Wiley & Sons, 1977
Buku Teks
Long, Calvin T., author
Pearson - Addison Wesley, 2009
Buku Teks