Premachandra, I.M. <br/><br/>
A simplified guide to lotus 123 

 - Nugegoda:  University of Sri Jayawardhanapura,  1988. 
 - ix,191p.;  28cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data Processing<br/>Computer Science
<br/><br/><label>Dewey Class. No.: </label>001.6425  / PRE