Kapa, Margarina, Yosina Makailipessy, Jolenta Jamfaaf, Dessi Pormes, and Ahmad Husin. 2026. “ The Relationship Between Gadget Usage Intensity and Learning Concentration of Junior High School Students”. MSJ : Majority Science Journal 4 (2):135-43. https://doi.org/10.61942/msj.v4i2.613.