Schaum's outline of differential equations 
by Richard Bronson, Gabriel B. Costa. 
 - 4th ed. 
 - Chicago, Ill.  McGraw-Hill Education LLC.,  2014 
<br/><br/><label>ISBN: </label>9780071824859 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations Differential equations