Tongue (5) Lengua (5) Investigación (5) Labor (4) Research (4) Lenguas (4) Trabajo (4) School children (3) Psychology (3) Paper (3) Language and languages (3) Id (Psychology) (3) Education, Bilingual (3) Communities (3) Chemical elements (3) Catalan language (3) Lengua catalana (3) Educación bilingüe (3) Escolares (3) Papel (3) Comunidad (3) Elementos químicos (3) Psicología (3) Ello (3) Équateur (2) Qualitative research (2) Origin (2) Toleration (2) Textbooks (2) Students (2)