OPEN Univeristy of Sri Lanka <br/><br/>
Course of study leading to the degree of bachelor of science level 4-organic che 

 - Nugegoda  The Open Unviersity of Sri Lanka  1987 
 - 99 p. 
<br/><br/><label>ISBN: </label>103100 
<br/><br/><label>Dewey Class. No.: </label>543.17  / OPE