Ober, S. (1993). Gregg college keyboarding & document processing for microcomputers, complete course (7th ed.). Glencoe.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOber, Scot. Gregg College Keyboarding & Document Processing for Microcomputers, Complete Course. 7th ed. New York, N.Y.: Glencoe, 1993.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOber, Scot. Gregg College Keyboarding & Document Processing for Microcomputers, Complete Course. 7th ed. Glencoe, 1993.
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