PARKER, A. (2005). MENTAL MATHS STRATEGIES BOOK- 2. SHETH PUBLISHING HOUSE.
Chicago-čujuhus (17. p.)PARKER, ALAN. MENTAL MATHS STRATEGIES BOOK- 2. SHETH PUBLISHING HOUSE, 2005.
MLA-čujuhus (9. p.)PARKER, ALAN. MENTAL MATHS STRATEGIES BOOK- 2. SHETH PUBLISHING HOUSE, 2005.
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