By School Mathematics Project
By Mel Lever
By Janet Rees, Rees, Janet
By Fentem, Roger, Berry, John, Langham, Sue
By Sue Atkinson, Liz Atkinson
By Elaine Sellers, Sue Lowndes
By Chris Green
By Brian Housden
By David Rayner, Michael White
By Geoff Fowler, Sue Muggeridge
By Claire Perry
By Terry Heard, David Martin, Bernard Murphy
By Ben Sparks, Claire Baldwin
By Jean-Paul Muscat
By Tony Staneff
By Paul Hollin
By Paul Broadbent
By CGP Books
By Tsokos, K. A.