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Hirose, H., Yamamoto, Y. & Ichikawa, H. (2010). Personal Computer Operation as Weak Point of Elderly People, Based on Novice Expert ratio Method. In J. Herrington & C. Montgomerie (Eds.), Proceedings of ED-MEDIA 2010--World Conference on Educational Multimedia, Hypermedia & Telecommunications (pp. 883-888). Toronto, Canada: Association for the Advancement of Computing in Education (AACE).