Consumers' Association of Singapore. (1971). CASE report. Consumers Association of Singapore.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रConsumers' Association of Singapore. CASE Report. Singapore: Consumers Association of Singapore, 1971.
एमएलए (8वां संस्करण) प्रशस्ति पत्रConsumers' Association of Singapore. CASE Report. Consumers Association of Singapore, 1971.
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