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Perspectives of Innovations, Economics and Business > 2012 > 12 > 3 > 21-33
Bulletin of Economic Research > 64 > 4 > 449 - 469
Economics of Education Review > 2012 > 31 > 4 > 391-409
Empirical Economics > 2012 > 42 > 2 > 369-394
Zarządzanie i Finanse > 2012 > 1 > 2 > 507-517
Społeczeństwo i Rodzina > 2011 > 4(29) > 38-51
Acta Technologica Dubnicae > 2011 > 1 > 1 > 47-59
Atlantic Economic Journal > 2011 > 39 > 2 > 103-115
International Review of Education > 2011 > 57 > 3-4 > 261-275
International Advances in Economic Research > 2011 > 17 > 2 > 224-235
Educational Technology Research and Development > 2011 > 59 > 4 > 511-527
General and Professional Education > 2011 > 1 > 17-21