Praphai Chalardkid <br/><br/>
Test development of mathematics subject matter knowledge levels of division of rational numbers of Thai preservice elementary teachers  [microform] / 
Praphai Chalardkid 
 - Ann Arbor, Mich. :  University Microfilms International ,  1994 
 - 2 microfiches ;  11 x 15 cm. 
<br/><br/>Thesis (Ph.D.) - Oregon State University, 1993 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)<br/>Mathematics teachers<br/>Elementary school teachers