By School Mathematics Project
By Igloo Books
By Letts GCSE
By Collins Easy Learning
By Neill, Hugh, Quadling, Douglas
By Autumn Publishing
By Kump, Peter
By SQA
By Vorderman, Carol
By Carthew, Mark, Rosen, Michael, Denton, Terry, Collins Big Cat
By Snashall, Sarah, Belli, Alfredo, Collins Big Cat
By Grainger, Teresa
By McGuinn, Nicholas
By Cardwell, Mike
By West, Keith, Collins Big Cat
By Clausen-May, Tandi
By Kuenzler, Lou
By Taylor, John
By Dixon, Trevor, Solvemaths Ltd
By Tandy, Miles
By Ganeri, Anita, Collins Big Cat
By McKellar, Danica
By Collins A-level
By Crebbin, June, Collins Big Cat, Hiatt, Kay
By Marie Lallaway
By Great Source
By Marshall Cavendish