Ashit, Prasad, Surya Bhushan      , <br/><br/>
Degree level trigonometry 
Mazumdar, A.R., Das Gupta, Ashit, Prasad, Surya Bhushan 
 - 3rd ed. 
 - Patna:  Bharati Bhawan,  1989. 
 - 238p.:  21cm. 
<br/><br/><label>Subjects--Personal Names: </label><br/>DEGREELEVEL TRIGONOMETRY.
<br/><br/><label>Dewey Class. No.: </label>516.24  / MAZ