Thaveedej Satitrittanun และ Pornchai Chanyagorn. (2011) Study of total cost of ownership versus performance of information technology system using virtualization technology. Mahidol University:ม.ป.ท.Thaveedej Satitrittanun และ Pornchai Chanyagorn. 2011. Study of total cost of ownership versus performance of information technology system using virtualization technology. ม.ป.ท.:Mahidol University;Thaveedej Satitrittanun และ Pornchai Chanyagorn. Study of total cost of ownership versus performance of information technology system using virtualization technology. ม.ป.ท.:Mahidol University, 2011. Print.