http://www.helium.com/knowledge/45656-evaluating-the-rosetta-stone-approach-to-foreign-language-study.xml Helium.com > Language Resources > Evaluating the Rosetta Stone approach to foreign language study en-us Copyright Helium.com Mon, 05 May 2008 19:39:55 GMT Mon, 05 May 2008 19:39:55 GMT