Leifer, M. (2000). Singapore's foreign policy: Coping with vulnerability. Routledge.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLeifer, Michael. Singapore's Foreign Policy: Coping with Vulnerability. New York, NY: Routledge, 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLeifer, Michael. Singapore's Foreign Policy: Coping with Vulnerability. Routledge, 2000.
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