Uṇṇikkr̥ṣṇan, Bi.,  1938- <br/><br/>
Sphaṭikamandiraṃ. 

 - [n.p.  1967] 
 - 136 p.  18 cm. 
<br/><br/> In Malayalam. 
<br/><br/><label>LCCN: </label>sa 68009591  
<br/><br/><label>LC Class. No.: </label>PL4718.9.U52  / S6