Varghakhadem, F., & Passingham, R. (1990). SPEECH AND LANGUAGE DEFECTS.
Lua i Stíl Chicago (17ú heag.)Varghakhadem, F., agus R. Passingham. SPEECH AND LANGUAGE DEFECTS. 1990.
Lua MLA (9ú heag.)Varghakhadem, F., agus R. Passingham. SPEECH AND LANGUAGE DEFECTS. 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.