F. Longo
Large Print Wordoku- Ninja Assassin Sudoku Black Belt
- Ninja Assassin Sudoku Blue Belt
- Ninja Assassin Sudoku Brown Belt
- Ninja Assassin Sudoku Green Belt
- Ninja Assassin Sudoku White Belt
- Ninja Assassin Sudoku Yellow Belt
- Sudoku Puzzles for a Road Trip
- Sudoku U PHD in Sudoku
- Sudoku U Senior Year
- Super Sized Book of Sudoku
- Word Search Sudoku O/P