Mahmud, Sultan <br/><br/>
Plane Trigonometry / 
Sultan Mahmud,  
 - Dacca :  East Bengal Publishers,  1966. 
 - 332 p. :  18 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry
<br/><br/><label>Dewey Class. No.: </label>514.5  / MAH 1966