By Chang, Raymond, Chang overrun
By Pickering, H.S.
By Cooke, D
By Koretsky, Milo
By Perry, O.W., Naish, June
By Lister, Ian
By Ebbing, Darrell D.
By Sam Godwin, Godwin, Sam
By Thulin, Måns
By Zumel, Nina, Mount, John
By Prindle, Anthony
By Hodge, S.E., Seed, Margaret L., Scottish Mathematics Group
By Bridges, E. M.
By Open University, Open University Course Team
By Kolb B., Teskey G. et al
By Kirkby, Dave
By Strathern, Paul
By Mason, Stephen F.
By Croft, Dr Anthony, Davison, Robert
By Hardy, G. H.
By Reitz, J.R., etc.
By Fyfe, Mary Teresa, Kilday, Kitty, Jobbings, Andrew
By Marshall, Sybil M.
By Moffat, Graham, Dickson, Bill
By SQA
By Bostrom, Nick
By School Mathematics Project
By Sutton, Andrew