Pakshikal:  athisayakaramaya jaivavaividyam / 

 - Third 
 - Kozhikode :  Poorna Publishers,  2012. 
<br/><br/><br/>In Malayalam 
<br/><br/><label>ISBN: </label>8130005395 
<br/><br/><label>Subjects--Index Terms: </label>Birds Zoology