Marshall, A. (2007). Ethical challenges in study design and informed consent for health research in resource - poor settings. World Health organization.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMarshall, A. Ethical Challenges in Study Design and Informed Consent for Health Research in Resource - Poor Settings. Geneva: World Health organization, 2007.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMarshall, A. Ethical Challenges in Study Design and Informed Consent for Health Research in Resource - Poor Settings. World Health organization, 2007.
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