OPEN University of Sri Lanka <br/><br/>
Theory of integration: PMU 2195/MAU 3120 

 - Nugegoda  The Open University of Sri Lanka  1992 
 - 110 p. 
<br/><br/><label>ISBN: </label>139556 
<br/><br/><label>Dewey Class. No.: </label>515.42  / OPE