By Maria Blanco, Gonzalo Vazquez
By Colin Noble, Jerry Brown, Jane Murphy
By Michael B. MacDonald
By Ina Taylor, Neera Vyas
By Jackie Barns-Graham
By Graeme Burton, Richard Dimbleby
By Gareth Moore, Jess Bradley
By Phyllis Haddox, Elaine Bruner, Siegfried Engelmann
By T. Dant, etc., Open University
By G. Taylor, R. Meherau, R. Meherali, Open University
By Felicity Brooks
By Gee, Robyn
By Gerald Graff
By Lea
By Richard Hinchcliffe, Anthony Bromley, Steve Hutchinson
By Susan Smith
By Matthew B. Miles, A. Michael Huberman
By Matthew B. Miles, Michael Huberman
By Iris Howden
By Lucy Lawrence, ester kasepuu
By Center for Creative Leadership (CCL), Maxine A. Dalton
By Michael M. Lombardo, Robert W. Eichinger
By Will Hussey, Barry Hymer
By Bill Ferguson
By Collins Dictionaries
By Michael Young (Institute of Education, University of London, UK)
By Tom Bennett
By Tim Bartlett, Jackie Beere, MBA OBE
By Drew Povey
By Ahlberg Allan, Mcnaughton Colin, Allan Ahlberg