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International Review of Social Research > 2014 > 4 > 1 > 49-56
Language Policy > 2010 > 9 > 3 > 241-256
European Journal of Operational Research > 1996 > 94 > 3 > 439-452
International Review of Social Research > 2014 > 4 > 1 > 49-56
Language Policy > 2010 > 9 > 3 > 241-256
European Journal of Operational Research > 1996 > 94 > 3 > 439-452