Julia Burchell. (2021). Cambridge Lower Secondary English Stage 9: Workbook. Collins.
Lua i Stíl Chicago (17ú heag.)Julia Burchell. Cambridge Lower Secondary English Stage 9: Workbook. London: Collins, 2021.
Lua MLA (9ú heag.)Julia Burchell. Cambridge Lower Secondary English Stage 9: Workbook. Collins, 2021.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.