Lalkar, P. B. <br/><br/>
Kuttikale nallavarakkan / 
by P. B. Lalkar 
 - 2nd ed. 
 - Kozhikode :  Poorna Publication,  2010. 
<br/><br/><br/>In Malayalam 
<br/><br/><label>ISBN: </label>8130004135 
<br/><br/><label>Subjects--Index Terms: </label>Child Development Psychological Development - Children