Singapore Tourist Promotion Board. Research Dept. (1972). Report on the survey of hotel guests in Singapore, April 1970-March 1971.
Lua i Stíl Chicago (17ú heag.)Singapore Tourist Promotion Board. Research Dept. Report on the Survey of Hotel Guests in Singapore, April 1970-March 1971. [Singapore], 1972.
Lua MLA (8ú heag.)Singapore Tourist Promotion Board. Research Dept. Report on the Survey of Hotel Guests in Singapore, April 1970-March 1971. 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.