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1Digital revistaSCIELO
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2monograph bibliotecaUNESCO
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3
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4Digital revistaUNMSM
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5by Bain,Odile, Petit,Gilles, Paperna,Ilan, Finkelman,Simcha, Killick-Kendrick,Mireille
Published 1992Digital revistaSCIELO