LEN, E., & YUE, P. (1988). Secondary 2 vocabulary guide and practice. reston Corporation.
Lua i Stíl Chicago (17ú heag.)LEN, Evelyn, agus P.S YUE. Secondary 2 Vocabulary Guide and Practice. Singaphore: reston Corporation, 1988.
Lua MLA (9ú heag.)LEN, Evelyn, agus P.S YUE. Secondary 2 Vocabulary Guide and Practice. reston Corporation, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.