Sattar, Muhammad Abdus. <br/><br/>
Higher trigonometry / 
Muhammad Abdus Sattar. 
 - 4th ed. 
 - Dhaka :  Ali publications,  1989. 
 - 157 p. :  20 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry.
<br/><br/><label>Dewey Class. No.: </label>516.24  / MUH