By Hooda, Peter
By Fannon, Paul, Ward, Stephen
By Lemonick, Michael
By Flegg, Graham
By Croft, Dr Anthony, Davison, Robert, Hargreaves, Martin
By Johnsonbaugh, Richard
By Dierker, Paul F
By Rosen, Kenneth H.
By Goodaire, Edgar G., Parmenter, Michael M.
By Mustoe, L. R.
By Steve Cavill and Geoff Gibb, Cavill, Steve, Gibb, Geoff
By Wegner, Tom, Peterson, Mark
By Gillham, Bill, Burgess, Mark
By Mitchell
By Garry, Tim, Wazir, Ibrahim, Frederick, Kevin, Landmann, Bryan, Nakamoto, Jim, Whalley, John
By Sparks, Ben, Baldwin, Claire, Davis, Heather, Trubridge, Nicola, Heslop, Mark
By Siklos, Stephen
By Ward, Stephen, Fannon, Paul
By Serena Alexander, Alexander, Serena
By Nuffield Foundation
By Kangaroo Maths, JustMaths
By Getling, David
By J.D. Gatford, N. Phillips
By Edwards, Dilwyn, Hamson, Mike
By Patilla, Peter
By Smith, G.R.Gilbart-, etc.
By Rayner, David
By Ludowyk, E.F. C.
By Sarah Lindsay