Finch,Lloyd. (2000). Telephone Courtesy & Customer Service (3rd Edition.). Crisp Publications, Thomson Course Technology.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFinch,Lloyd. Telephone Courtesy & Customer Service. 3rd Edition. Thomson Place, Boston, Miami: Crisp Publications, Thomson Course Technology, 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFinch,Lloyd. Telephone Courtesy & Customer Service. 3rd Edition. Crisp Publications, Thomson Course Technology, 2000.
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