Beliber, Hilmar T., <br/><br/>
The Buhi - Lalo irrigation system/ 
Hilmar T. Beliber, Richard L. Borromeo, Dondie T. De Lima 
 - Nabua, Camarines Sur :  Camarines Sur Polytechnic Colleges ;  2004. 
 - 51 leaves. 
<br/><br/>Undergraduate Thesis (BSCE) - Civil Engineering