Mactal, Ronaldo B.  <br/><br/>
Padayon araling panlipunan sa siglo 21:   Kasaysayan ng daigdig/  
Ronaldo B. Mactal. 
 - Quezon City:   Phoenix Publishing House, Inc.,   2014.  
 - x, 445  pages:   illustrations, pictures, figures, tables;   25 cm. 
<br/><br/>Heograpiya at mga sinaunang kabihasnan sa daigdig  
<br/><br/><br/>Tagalog 
<br/><br/><label>ISBN: </label>9789710636136 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Araling panlipunan. <br/>Kasaysayan ng daigdig. 
<br/><br/><label>Dewey Class. No.: </label>909  / M25p