Speed Mathematics: Secrets of Lightning Mental Calculation
- Author
- Bill Handley
- Publisher
- Wrightbooks
- Language
- English
- Edition
- 3rd Revised edition
- Year
- 2008
- Page
- 320
- ISBN
- 0731407814,9780731407811
- File Type
- mobi
- File Size
- 8.1 MiB
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