Nacario, Samuel A., <br/><br/>
Improvised engine exhaust filter device/ 
Samuel A. Nacario, Marvin F. Lomenario, Marion Dexter S. Mora 
 - Nabua, Camarines Sur :  Camarines Sur Polytechnic Colleges ;  2009. 
 - 78 leaves. 
<br/><br/>Undergraduate Thesis (BSME) - Mechanical Engineering