Madhu, B. <br/><br/>
Trikonamiti pathikkam / 
B. Madhu 
 - Kottayam :  D. C. Books,  2007 
 - 64 p. :  diag. ;  21 cm. 
<br/><br/> Trigonometry 
<br/><br/><label>ISBN: </label>8126416505 :  Rs. 32.00. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Circle<br/>Conic sections
<br/><br/><label>Dewey Class. No.: </label>516.24