Robek, M. F., & Tesch, R. C. (1983). Workbook and study guide to accompany David's computers and business information processing (2a. ed.). Addison-Wesley.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRobek, Mary F., और Robert C. Tesch. Workbook and Study Guide to Accompany David's Computers and Business Information Processing. 2a. ed. Reading: Addison-Wesley, 1983.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRobek, Mary F., और Robert C. Tesch. Workbook and Study Guide to Accompany David's Computers and Business Information Processing. 2a. ed. Addison-Wesley, 1983.
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