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              Murray, T. S., Kirsch, I. S. & Jenkins, L. B. (1997). Adult literacy in OECD countries: Technical report on the first International Adult Literacy Survey (Nr. NCES 98-053). Washington D.C.: National Center for Education Statistics.
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              Murray, T. S., Kirsch, I. S., & Jenkins, L. B. (1998). Adult literacy in OECD countries: Technical report on the first International Adult Literacy Survey (NCES 98-053). National Center for Education Statistics.
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