Umāpati Civācāriyār,  active 14th century. <br/><br/>
Umāpati Civācāriyār aruḷic ceyta Tiruvaruṭpayan̲ [m̲ar̲r̲um] Vin̲āveṇpā. 

 - [1st. ed.] 
 -  1968. 
 - 60 p.  21 cm. 
<br/><br/> In Tamil. 
<br/><br/><label>LCCN: </label>sa 68011740  
<br/><br/><label>LC Class. No.: </label>PL4758.9.U39  / T5 1968