Essentials of english :  english 101 (workbook-textbook)  / 
Senatin, Ruby B.; Centenera, Fe G. 
 - rev ed. 
 - Mandaluyong City :  National Book Store,  2009. 
 - ix, 120 p.; 22.2 cm. 
<br/><br/>Includes references 
<br/><br/><label>ISBN: </label>9710869760 
<br/><br/><label>Dewey Class. No.: </label>Fil 420.7 S474 2009