Yamada Momo Books
Sudoku Samurai Medium: Original Sudoku for Brain Power Vol. 7: Include 500 Puzzles Sudoku Samurai Medium Level (Medium Level Sudoku Samurai for Brain Power) (Volume 7)
View book details: Sudoku Samurai Medium: Original Sudoku for Brain Power Vol. 7: Include 500 Puzzles Sudoku Samurai Medium Level (Medium Level Sudoku Samurai for Brain Power) (Volume 7)