Helgesen, M., Brown, S., & Smith, D. Active listening. expanding. Understanding through content (3a ed.).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHelgesen, Marc, Steven Brown, और Dorolyn Smith. Active Listening. Expanding. Understanding Through Content. 3a ed.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHelgesen, Marc, et al. Active Listening. Expanding. Understanding Through Content. 3a ed.
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