Ampil, Roberto D., <br/><br/>
Silbato 7 :  batayang aklat sa wika at panitikan / 
Roberto D. Ampil 
 - Quezon City :  St. Augustine Publications Inc.,  2022. 
 - ix, 413 pages :  illustrations, tables, figures ;  25 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><br/>Tagalog 
<br/><br/><label>ISBN: </label>9786218113503 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Silbato.<br/>Wika.<br/>Panitikan.
<br/><br/><label>Dewey Class. No.: </label>499.211  / A526s