Sastrillo, Bernalyn Hapin <br/><br/>
Detective boys of masangkay : a closed-door mystery / 
Bernalyn Hapin Sastrillo 
 - Quezon City :  Adarna House,  c2018. 
 - 154 pages :  illustrations ;  23 cm. 
<br/><br/><label>ISBN: </label>9789715087360 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Detective and mystery fiction.
<br/><br/><label>Dewey Class. No.: </label>Fic. Sa252 2018