By Naylor, S., Keogh, B, Dabell, J
By Simon Tudhope, Lizzie Barber
By Freiman, Viktor, Tassell, Janet Lynne
By CGP Books, CGP Books
By Helen Williams, Williams, Helen
By Tatto, Maria Teresa, Rodriguez, Michael C., Smith, Wendy M., Reckase, Mark D., Bankov, Kiril
By Scottish Mathematics Group
By MODULAR MTHS
By Andrew Brodie
By LETTS EDUCATIONAL
By Bikner-Ahsbahs, Angelika, Knipping, Christine, Presmeg, Norma
By Sriraman, Bharath, English, Lyn
By Puharich, Trish
By Cope, Lee, Brown, Cath
By BBC
By Edward C K Mullan, Peter Westwood, Clive Chambers, Mullan, Edward C K, Westwood, Peter, Chambers, Clive
By Griffiths, Rose
By Various
By Louise Moore & Peter Crawford
By Rising Stars
By Qualifications and Curriculum Authority