Singapore. Ministry of Labor. Report on the labour force survey of Singapore ([19-.). Ministry of Labor.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSingapore. Ministry of Labor. Report on the Labour Force Survey of Singapore. [19-. Singapore: Ministry of Labor.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSingapore. Ministry of Labor. Report on the Labour Force Survey of Singapore. [19-. Ministry of Labor.
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