Jayasena, A. I. (1959). Changes in the population distribution of Ceylon and regional economic development, 1911-1953.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJayasena, Amara Indrani. Changes in the Population Distribution of Ceylon and Regional Economic Development, 1911-1953. 1959.
एमएलए (9वां संस्करण) प्रशस्ति पत्रJayasena, Amara Indrani. Changes in the Population Distribution of Ceylon and Regional Economic Development, 1911-1953. 1959.
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