World Health Organization. (2005). Preparing a health care workforce for the 21st century: The challenge of chronic conditions. World health Organization.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWorld Health Organization. Preparing a Health Care Workforce for the 21st Century: The Challenge of Chronic Conditions. Geneva: World health Organization, 2005.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWorld Health Organization. Preparing a Health Care Workforce for the 21st Century: The Challenge of Chronic Conditions. World health Organization, 2005.
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