Não informado. (2004). International Journal of Welfare for the Aged. Korean Society of Welfare for the Aged.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. International Journal of Welfare for the Aged. Seoul: Korean Society of Welfare for the Aged, 2004.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. International Journal of Welfare for the Aged. Korean Society of Welfare for the Aged, 2004.
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