Gorecho, Rickson A., <br/><br/>
An obstruction sensitive-proximity detector/ 
Rickson A. Gorecho, Roger D. Sabaupan, Lea Mae I. Scarella 
 - Nabua, Camarines Sur :  Camarines Sur Polytechnic Colleges ;  2002. 
 - 51 leaves. 
<br/><br/>Undergraduate Thesis (BSECE) - Electronics Engineering