Gangadharan Nair, P N ഗംഗാധരൻനായർ, പി എൻ <br/><br/>
വിജ്ഞാന കിരണങ്ങൾ /  
by P N Gangadharan Nair 
 - Thiruvananthapuram :  Prabhatham Printing & Publishing Company Private Limited,  2020. 
 - 134p. : 
<br/><br/><label>ISBN: </label>9789389903652 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Malayalam study
<br/><br/><label>Dewey Class. No.: </label>371.262  / GAN/V R0