Vallejos, Eithel, Universidad de Costa Rica, Costa Rica
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InterSedes Vol. 12 No. 23 (2011) Articles (Peer-reviewed/refereed)
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InterSedes Vol. 11 No. 22 (2010) Articles (Peer-reviewed/refereed)
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InterSedes Vol. 13 No. 26 (2012) Articles (Peer-reviewed/refereed)
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InterSedes Vol. 14 No. 27 (2013) Articles (Peer-reviewed/refereed)