Babbie, E. (2004). The Practice of Social Research (10th.). Thomson Learning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBabbie, Earl. The Practice of Social Research. 10th. Singapore: Thomson Learning, 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBabbie, Earl. The Practice of Social Research. 10th. Thomson Learning, 2004.
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