Ruin, Marissa N., <br/><br/>
Infrared motion detector/ 
Marissa N. Ruin, Dante M. Dacara, Romeo B. Taduran Jr. 
 - Nabua, Camarines Sur :  Camarines Sur Polytechnic Colleges ;  2003 
 - 59 leaves. 
<br/><br/>Undergraduate Thesis (BSECE) - electronics and communication engineering