ser o no plurilingue Lüdi & Py (1) (1)
Selinker (1972) - Intrelanguage
Canale & Swain (1980) Theoretical Bases of Communicative Approaches of Second Language Teaching and Testing
Schumann (1976) - Second Language Acquisition the Pidginization Hypothesis
UNESCO -Lenguas y Educacion
Gramsci Antonio - Odio a Los Indiferentes