Bicaldo, Angelica E., <br/><br/>
Handheld measuring device for soil, air and water/ 
Angelica E. Bicaldo, Karen B. Domamay, Avegail G. Nillo, Ralph Andrei Paul A. Olaso, Jemuel R. Perez 
 - Nabua, Camarines Sur :  Camarines Sur Polytechnic Colleges ;  2016. 
 - 141 leaves. 
<br/><br/>Undergraduate Thesis (BSECE) - Electronics Engineering