Rules 1. Chester Bernard , The Function of the Executives ( Harvard: Camp bridge Harvard Press, 1992) 2. Daniel C. Lynch, Internet System Handbook ( Boston: Addison Wesley Publishing Co.1992) 3. Liza Sherwood, available online http://www.articlesnatch.com/topic/point+of+inventory+system*iXzz1NdPvOvDi 4. Jill Morrison*entitled *Inventory Management Software* 5. Thomas Atchison, Management today – Managing Work Org. ( Ohio: San Diego State University , 1992) 6. Gail Lavielle, Wal Mart Inventory System (2011, 03). Related Lite of Sales and Inventory System 7. Godwin Udo, Writing in Production and Inventory Management Journal (2011,09) 8. Ramon Faloran, The Computer Edge of the New Employment and Opportunities (2005) 9. Ralph M. Stairs, Fundamentals of Information System (2001) 10. Bernardo Duran, Studies on Computer Management (Unpublished Case Study, De La Salle University, (1989) 11. Myllynen Service Provider Selection in Open Standard Inter Organizational Linkages-Case Electronic invoicing (2011) 12. J. De Leon M. Ferrer, Korean Red Ginseng Enterprise Sales and Inventory (2001)