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Ireson, Judith and Rushforth, Katie (2009) Private tutoring at transition points in the English education system: its nature, extent and purpose. Research Papers in Education, iFirst. 1 iFirst-19 iFirst. ISSN 0267-1522. DOI UNSPECIFIED
Rushforth, Katie (2011) The quality and effectiveness of one-to-one private tuition in England. PhD thesis, Institute of Education, University of London.