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The New Educational Review > 2013 > 31 > 195-204
IEEE Transactions on Engineering Management > 2012 > 59 > 1 > 77 - 90
MSIE 2011 > 504 - 507
The New Educational Review > 2013 > 31 > 195-204
IEEE Transactions on Engineering Management > 2012 > 59 > 1 > 77 - 90
MSIE 2011 > 504 - 507