JAYASURIYA (J E) <br/><br/>
Statistical calculation for teachers 

 - Madras  Macmillan & Co. Ltd.  1955 
 - 100 
<br/><br/><label>Subjects--Topical Terms: </label><br/>teachers<br/>Statistical<br/>for<br/>calculation
<br/><br/><label>Dewey Class. No.: </label>311/30