By Stroud, K.A., Booth, Dexter J.
By Jeremy Hodgen, Dylan William
By Perkowitz, Sidney
By David
By Bowles, David, Jefferson, Brian, Mullan, Eddie, Rayneau, John, Rowland, Mark, Wagner, Robert, Williams, Paul, Wiseman, Garry, Wood, Katie, Baker
By Eastaway, Rob, Haigh, John
By CGP Books
By Pat Bryden, Roger Porkess, John Berry, Ted Graham, Bryden, Pat, Porkess, Roger, Berry, John, Graham, Ted
By School Mathematics Project
By Banks, Mr Tony, Alcorn
By Pledger, Keith
By Berry, John, Langham, Sue
By Letts GCSE
By Gordon, Keith, Evans, Kevin, Speed, Brian, Senior, Trevor
By Sherran, Peter, Crawshaw, Janet
By Phyllis Whitin (author) & David Whitin (author)
By Woodman, Anne, etc., Albany, E., Riding, Richard
By BEAM Education Ltd., Mosley, Frances, Elphinstone, Ros, Polnay, A.D., Anna de
By Eugenia Cheng
By Polya, G.
By Mcadams, David
By john-allen-paulos, Paulos, John Allen
By Brams, Steven J.
By Sherran, Peter