OPEN University of Sri Lanka <br/><br/>
Course of study leading to the degree of bachelor of science level 5 PSU3119: to 

 - Nugegoda  The Open University of Sri Lanka  1990 
 - 55 p. 
<br/><br/><label>ISBN: </label>139419 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industrial chemistry
<br/><br/><label>Dewey Class. No.: </label>660  / OPE