Discrete mathematics / 
Jonathan B. Cabero... [et al.]. 
 - Mandaluyong City :  National Bookstore,  c2010. 
 - 173p.: ill.; 25cm. 
<br/><br/><label>ISBN: </label>9710871072 
<br/><br/><label>Subjects--Personal Names: </label><br/>Cabero, Jonathan B.<br/>Lopez, Rochelle<br/>Salamat, Lorina G.<br/>Sta Maria, Antonina C.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics