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.
By Derek W Haylock, Derek Haylock
By Ian Stewart, Nikki Phillips
By Barbara Ball, etc.
By Wendy Fisher, Barbara Ball, Christine Atkinson, Margaret Poston, Jeremy Richardson
By D. A. Turner, etc., B.V. Hony, A. Ledsham, K.D. Oakley
By School Mathematics Project
By Robert Haese, Pamela Vollmar, Keith Black
By Pamela Vollmar, Edward Kemp, Chris Sangwin, Robert Haese, Michael Haese
By Robert Haese, Michael Haese, Mark Humphries, Sandra Haese, John Owen
By Tony Gardiner
By Navtej Marwaha
By Roger Williamson, Gill Buque, Jim Miller, Chris Worth