Yontar Ayşenur <br/><br/>
The effect of grade and logical reasoning ability on conceptualizations related to selected scince concepts of fifth, eighth and eleventh grade students / 
Ayşenur Yontar. 
 - Ankara :  Middle East Technical University,  1989. 
 - 248 p. ;  30 cm. 
<br/><br/><label>Subjects--Corporate Names: </label><br/>Middle East Technical University--Dissertations
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and Teaching
<br/><br/><label>LC Class. No.: </label>Q181