Students (2) Estudio (2) Estudiantes (2) Global system for mobile communications (1) Internet (1) Social networks (1) Writing (1) Social groups (1) School children (1) Reasoning (1) Quality of products (1) Production (Economic theory) (1) Linguistics (1) Language and languages (1) History (1) Generals (1) Design (1) Concepts (1) Ability (1) GSM (1) Demanda (1) Evidencia (1) Redes sociales (1) Factores (1) Internet (1) Chilenos (1) Calidad (1) Generales (1) Escolares (1) Diseño (1)