Senatin, Ruby B. <br/><br/>
Essentials of english :   English 101 workbook - textbook / 
Ruby B. Senatin. 
 - Mandaluyong City :  National Book Store,  2009. 
 - ix, 120 p.:  22 cm. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>971-08-6976-0 
<br/><br/><label>LC Class. No.: </label>428.3 Se47