1.Fast,Carl. Leise,Fred. Steckel,Mike. What is a controlled vocabulary.Boxes and arrows.December 16,2002.Web.May 14,2014.

2.Tips for searching Article Databases.University of Illinois Biology Library.January 9,2009. Web.May 12,2014

3.SVC Students should use database instead of the internet.Southern Vermont college.Web. May 12,2014.

4.Speech Enabled interactive voice response system.Intervoice Brite. Web. May 12, 2014.