Babol, Arnel S., <br/><br/>
Portable cell phone charger using solar energy/ 
Arnel S. Babol, Renan T. Cagnayo, Joseph V. Nodado, Melvin A. Tresvalles 
 - Nabua, Camarines Sur :  Camarines Sur Polytechnic Colleges ;  2003. 
 - 48 leaves. 
<br/><br/>Undergraduate Thesis (BSEE) - Electrical Engineering