Ampongan, Jason S., <br/><br/>
Multi-function hydraulic puller/ 
Jason S. Ampongan., Rhyan T. Folloso., Angelo O. Gadier., 
 - Nabua, Camarines Sur :  Camarines Sur Polytechnic Colleges ;  2005 
 - 80 leaves. 
<br/><br/>Undergraduate Thesis (BSME) - Mechanical Engineering