(1998). Problems and solutions in mathematics. Singapore: World Scientific.
Dyfyniad Arddull ChicagoProblems and Solutions in Mathematics. Singapore: World Scientific, 1998.
Dyfyniad MLAProblems and Solutions in Mathematics. Singapore: World Scientific, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.