Tabil, R. D. (2006). Problem solving using manipulatives in elementary mathematics.
Chicago (17e ed.) BronvermeldingTabil, Rey D. Problem Solving Using Manipulatives in Elementary Mathematics. 2006.
MLA (9e ed.) BronvermeldingTabil, Rey D. Problem Solving Using Manipulatives in Elementary Mathematics. 2006.
Let op: Deze citaties zijn niet altijd 100% accuraat.