00680nam a22001817a 4500 20230529135525.0 220831b |||||||| |||| 00| 0 eng d HSLRC HSLRC HSLRC TK 6564 S165 2012 Salazar, Francis L. 22427 Cellphone usage affects the academic performance of the selected high school students in Our Lady of Perpetual Succor College SY 2011-2022 Marikina City February 2012 37 pages, illustrations, 28 cm. Research SHS Thesis 31735 Alexis L. Dela Cruz 31736 lcc THE 84339 84339 0 0 lcc 0 1 HSLRC HSLRC THE 2022-08-31 TK 6564 S165 2012 THE0040HS 2025-05-23 00:00:00 1 2022-08-31 THE