Gamiao, Jezwinder A., et al.  <br/><br/>
Comparative study on the compressive strength of concrete using varying proportions of natural and crushed coarse aggregates  
Jezwinder A. Gamiao, et al.  
 -  2010 
 - viii, 100 leaves   28 cm. 
<br/><br/> Thesis (BS Civil Engineering) -- Mariano Marcos State University-College of Engineering, Batac City 
<br/><br/>Bibliography: leaf 42