Yes, there is.  At the end of the second paragraph of Study Tech would you add this reference, please. [http://www.studytechnology.org/ Official Study Tech] because that will present the official study tech first in the list of references and is appropriate to the statements in the article.  If that is done then the first exterior link (which is that link) can be deleted.  Thank you and is an outside point of view needed in an article, elsewhere?