Valencia, Kari <br/><br/>
Study on the effects of the use of Cell Phone among OLOPS Student in the 2nd Semester of School Year 2003-2004, A/ 
Valencia, Kari 
 - Marikina City:  OLOPSC ,   c2004 
 -  color illustrations;  28cm 
<br/><br/> Includes appendices and bibliography. 
<br/><br/> Approval Sheet 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Children--Effect of technological innovations<br/>Cell phones--Social aspects.
<br/><br/><label>LC Class. No.: </label>HQ 784 V35 2004  / THE00479