http://www.articleheaven.net en-us editorial@articlealley.com Since ages books have been the primary source of knowledge! No matter new technologies like internet and other mode of research have arrived still books are given first preference. Books are available on every subject and to keep these up to date these ar... http://www.articleheaven.net/medical-books-rich-source-of-knowledge-2117216.html 15th March 2011