(2001). Essential mathematics testmaker plus! Cambridge: Cambridge University Press.
Dyfyniad Arddull ChicagoEssential Mathematics Testmaker Plus! Cambridge: Cambridge University Press, 2001.
Dyfyniad MLAEssential Mathematics Testmaker Plus! Cambridge: Cambridge University Press, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.