Hartman, W. J. (1987). Five audiences: Identifying groups in your church. Abingdon.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHartman, Warren J. Five Audiences: Identifying Groups in Your Church. Nashville: Abingdon, 1987.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHartman, Warren J. Five Audiences: Identifying Groups in Your Church. Abingdon, 1987.
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