| title | ISBN-13 | year of publication |
|---|---|---|
| Hard Math for Elementary School | 978-1-4895-0717-4 | 2013 |
| Hard Math for Elementary School: Answer Key for Workbook | 978-1-4848-5142-5 | 2013 |
| Hard Math for Elementary School: Workbook | 978-1-4848-4301-7 | 2013 |
| Hard Math For Middle School: Imlem Edition | 978-1-4392-9742-1 | 2008 |
| Hard Math for Middle School: IMLEM Plus Edition | 978-1-4538-1445-1 | 2010 |
| Hard Math for Middle School: Workbook | 978-1-5428-3508-4 | 2017 |
| Power speaking that gets results | 978-0-13-687004-3 | 1974 |
| Run-And-Shoot Football: The Now Attack | 978-0-13-783879-0 | 1984 |
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