Bangia Ramesh. creator text Delhi Khanna Book Publishing Co. Pvt. Ltd. c2001 monographic 191 pages : Illustrations ; Business Management information systems Gestion QA 76 BAN https://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=2878773 https://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=2878773