اللغات الأجنبية
Quirk, R. Allen and S. The Silent Language.
Related titles
the Hague: Mouton. Friedrich, Paul Chicago: The University of Chicago Press House, J. Lado, Robert On Communicative Competence.
المدونة الفلسفية: هيدجرومسألة الوجود
et al eds. Sanches and B. Bloom, B. Campbell eds. Pride, J. The Biological Foundations of Language.