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Cara, Olga and Coulon, Augustin de (2008) Skills for Life teachers' qualifications and their learners' progress in adult numeracy: Research Summary. Project Report. National Research and Development Centre for adult literacy and numeracy, Institute of Education, University of London, London.
Coulon, Augustin de and Cara, Olga (2008) Do better qualified teachers teach better? Reflect - the Magazine of the NRDC, 11. pp. 18-20.