Junior su doku. 

 - Cambridge :  Wizard Books,  2005. 
 - 111 p. : ;  20 cm. 
<br/><br/><label>ISBN: </label>1840467231 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic puzzles.<br/>Mathematical recreations.<br/>Puzzles.<br/>Sudoku.