By Bradfield, Philip, Dodds, Judy, Taylor, Norma
By Mitchell, Sandra, Golabek, Charles, Walsh, Ed, Sandra Mitchell, Charles Golabek, Ed Walsh
By Michael Marland
By John Visser (University of Northampton, UK), Graham Upton
By Graham Upton
By Pearce, Chris
By Mackean, D. G., D. G. Mackean
By Paton, Alan
By Daniels, Ann, Walsh, Ed
By John Sproule
By Boyle, Mike
By W. Bolton
By Ford, John, Jonson, Will
By Evans, Kevin, Gordon, Keith, Senior, Trevor, Speed, Brian, Pearce, Chris, Kevin Evans, Keith Gordon, Trevor Senior, Brian Speed, Chris Pearce
By Sue Palmer (Writer, Broadcaster and Consultant, UK)
By Trevor Wright (University of Worcester, UK)
By Nigel Watson
By Unidentified Author, School Mathematics Project
By Brooks
By Clegg, C. J.
By Fosbery, Richard
By G Posner, A Rudnitsky
By bell / traynor / aucott, Clive Bell, Tracy Traynor
By Speed, Brian, Gordon, Keith, Evans, Kevin
By R.J. Hosking, S. Joe, D.C. Joyce, J.C. Turner (all of the University of Waikato, New Zealand)
By Pharaoh, Lynn, Bishop, Chris, Gidzewicz, Chris