Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
225 Sudoku Puzzles For Kids 4x4 6x6 9×9 Activity Book for KidsThis sudoku book include all sudoku levels which are suitable for kids, 4×4, 6×6, 9×9, Also we put a page explain how to play sudoku with easy simple steps.Activity Book for Kids