Abalı, Osman. <br/><br/>
Dikkati güçlendirme seti :  SBS destekli / 
by Osman Abalı and Savaş Özdemir. 
 - Istanbul :  Adeda,  2007. 
 - 154 p. :  col., ill ;  16X27 cm. 
<br/><br/> This book is in Turkish. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Attention and concentration.