00812nam a22002177a 4500 20240123114240.0 200220b ||||| |||| 00| 0 eng d CLRC CLRC CLRC HQ 784 V35 2004 THE00479 Valencia, Kari 3571 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 Includes appendices and bibliography. Approval Sheet Children Effect of technological innovations 3357 Cell phones Social aspects. 46083 Valencia, Kari 3571 lcc THE 70915 70915 0 0 lcc 0 0 CLLRC CLLRC THE 2023-12-15 HQ 784 V35 2004 THE00479 2025-06-13 00:00:00 2 2023-12-15 THE