Berią, Joel M., <br/><br/>
Pond aerator/ 
Joel M. Berią, Gaylord M. Cortez, Agustin P. Cabanos Jr. 
 - Nabua, Camarines Sur :  Camarines Sur Polytechnic Colleges ;  2006. 
 - 43 leaves. 
<br/><br/>Undergraduate Thesis (BSME) - Mechanical Engineering