Handley, B. (2004). SPEED matthematics: Secret Skills for Quick Calculation. Bandung : Pakae raya.
Chicagoスタイル(17版)引用形式Handley, Bill. SPEED Matthematics: Secret Skills for Quick Calculation. Bandung : Pakae raya, 2004.
MLA(8版)引用形式Handley, Bill. SPEED Matthematics: Secret Skills for Quick Calculation. Bandung : Pakae raya, 2004.
警告: この引用は必ずしも正確ではありません.