Bello, Lemuel Z., <br/><br/>
Improvised parabolic microphone/ 
Lemuel Z. Bello, Christopher T. Oares 
 - Nabua, Camarines Sur :  Camarines Sur Polytechnic Colleges ;  1999. 
 - 39 leaves. 
<br/><br/>Undergraduate Thesis (BSECE) - Electronics Engineering