By Tipler / Vickers, M J Tipler
By Colin Foster
By Nuffield Foundation
By School Mathematics Project
By Robert Haese, Sandra Haese, Pamela Vollmar
By Robert Haese, Sandra Haese, Kim Harris
By Paul Metcalf
By Christopher Green
By John Berry
By Judita Cofman (Teacher of Mathematics, Teacher of Mathematics, Putney High School)
By Darren Macey, Will Hornby
By P. J. Giblin, I.R. Porteus
By Judita Cofman (Professor, Mathematics Institute, Professor, University of Erlangen)
By J.R. Irwin
By D. Rayner
By Fiona C Mapp
By Paul Broadbent, Peter Patilla
By David Green, Peter Armstrong, Richard Bridges, The Mathematical Association
By Letts A-level
By Parsons, Richard
By Rose Griffiths
By Wilbert Reimer, Luetta Reimer
By Wilbert Reimer
By richard-parsons, CGP Books
By Peter Robson
By Michael Haese, Sandra Haese, Robert Haese, James Foley, Alison Ryan
By Jim Haskins