Natarajan, K. <br/><br/>
How to create sudoku puzzles/ 
K.Natarajan 
 - 1st ed 
 -  MJPH,  2019. 
 - pbk 
<br/><br/><label>ISBN: </label>978-93-88000-44-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MATHSKNOWLEDGE
<br/><br/><label>Dewey Class. No.: </label>793.73  / NAT