Manlagnit,  Ma. Jema B., <br/><br/>
Automatic light switch using AD161 germanium transistor/ 
Ma. Jema B. Manlagnit, Salvador A. Marano, Aldrin T. Barcinal 
 - Nabua, Camarines Sur :  Camarines Sur Polytechnic Colleges ;  2007. 
 - 59 leaves. 
<br/><br/>Undergraduate Thesis (BSECE) - Electronics Engineering