Foster, J. (2010). Freedom, opportunity and wellbeing. Oxford Poverty & Human Development Initiative (OPHI).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFoster, J. Freedom, Opportunity and Wellbeing. Oxford Poverty & Human Development Initiative (OPHI), 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFoster, J. Freedom, Opportunity and Wellbeing. Oxford Poverty & Human Development Initiative (OPHI), 2010.
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