Harkness, J. A. (2010). Survey methods in multinational, multiregional, and multicultural contexts. Wiley. https://doi.org/10.1002/9780470609927
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHarkness, Janet A. Survey Methods in Multinational, Multiregional, and Multicultural Contexts. Hoboken, N.J: Wiley, 2010. https://doi.org/10.1002/9780470609927.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHarkness, Janet A. Survey Methods in Multinational, Multiregional, and Multicultural Contexts. Wiley, 2010. https://doi.org/10.1002/9780470609927.
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