Dumayas, Roderic D., Pumaras, Elwin A., Tolentino, Adrian A.  <br/><br/>
The effect of black sand as a fine aggregate for concrete 
Roderic D. Dumayas, Elwin A. Pumars, Adrian A. Tolentino   
 -  2008  
 - xiii, [65] leaves   28 cm. 
<br/><br/> Thesis (BS Civil Engineering) -- Mariano Marcos State University-College of Engineering, Batac City  
<br/><br/>Bibliography: leaf 30