Pricha Vongchusiri,  1940- <br/><br/>
The effects of alternative instructional methods on the achievement of science students in the elementary schools of northeast Thailand  [microform] / 
Pricha Vongchusiri 
 - Ann Arbor, Mich. :  University Microfilms International,  1974 
 - 1 microfilm reel :  positive ;  35 mm. 
<br/><br/>Thesis (Ph.D.) - Cornell University, 1974 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education, Elementary--Thailand<br/>Education--Thailand
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Thailand--Education, Elementary<br/>Thailand--Educations