| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Sudoku Puzzle Books: Level very easy to difficult 150 Puzzles Sudoku Challenge - Brain development | 978-1-0756-9128-7 (1-0756-9128-1) | 2019 |
| Sudoku Puzzle Books: Puzzle and Coloring for Kids a variety of sudoko and coloring cute to exercise your brain-children beginner to school. | 978-1-0756-9249-9 (1-0756-9249-0) | 2019 |
J.M. · J. Masson · J R · John M. · John Masson · John R. · John R. M. · R. M.