(1973). Hopt news: A monthly bulletin by E. Hopt Singapore (Pte) Ltd for its staff. E. Hopt Singapore (Pte) Ltd..
Lua i Stíl Chicago (17ú heag.)Hopt News: A Monthly Bulletin by E. Hopt Singapore (Pte) Ltd for Its Staff. Singapore: E. Hopt Singapore (Pte) Ltd., 1973.
Lua MLA (8ú heag.)Hopt News: A Monthly Bulletin by E. Hopt Singapore (Pte) Ltd for Its Staff. E. Hopt Singapore (Pte) Ltd., 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.