Rainville, Earl David. <br/><br/>
Elementary differential equations. / 
Earl D. Rainville, Phillip E. Bedient. 
 - 7th ed. 
 - Quezon City :  EDCA,  1989. 
 - xiii, 546 p. : figs. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>971105552X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.