Ergin, Sinan. <br/><br/>
Neden? / 
Sinan Ergin.   
 - İstanbul:  Goa Basım Yayın,  2009. 
 - 152 p.:  ill.;  21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Self-actualization (Psychology).<br/>Behavior modification.
<br/><br/><label>LC Class. No.: </label>BF637.S4