Petalio, Paul B., <br/><br/>
Strength of concrete with rice straw ash / 
Paul B. Petalio, Marlo B. Sirios, Mark Vincent B. Tretasco 
 - Nabua, Camarines sur :  Camarines sur Polytechnic Colleges ;  2015. 
 - 113 leaves 
<br/><br/>Undergraduate Thesis (BSCE) - Civil Engineering