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Estudios Gerenciales > 2014 > 30 > 132 > 211-219
Journal of Economics, Finance and Administrative Science > 2014 > 19 > 36 > 2-10
Estudios Gerenciales > 2014 > 30 > 132 > 211-219
Journal of Economics, Finance and Administrative Science > 2014 > 19 > 36 > 2-10