1
Published 2002
Available in Fuente Académica Plus.
Electronic Journal
2
Available in Fuente Académica Plus.
Electronic Serial
3
Published 2001
Available in Fuente Académica Plus.
Electronic Serial
4
Published 2001
Available in Fuente Académica Plus.
Electronic Journal
5
Published 1991
Available in Education Source.
Electronic Journal
7
by Fernández, Oscar.
Published 2002
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8
by Seshaiah, Venkata.
Published 2003
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9
by Chang, Suijim.
Published 2003
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10
by Lago, Critina.
Published 2004
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12
by Eicher, Jean-Claude.
Published 2001
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14
by Arranz, Matilde.
Published 2004
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15
by Expósito, Pilar.
Published 2004
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16
by Cartagena, Katherine.
Published 2003
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19
by Guisán, María del Carmen.
Published 2003
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