Four software tools DOS for IBM PC and MS DOS word processing using wordperfect 5.0 and 5.1 spreadsheets using lotus 1-2-3 releases 2.01 and 2.2 database management using dBase 111 plus - Duffy, Tim (Belmont, Ca. Wadsworth Publishing Co., 1991)
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Keywords: PC DOS (Computer operating system); MS-DOS (Computer operating system); WordPerfect (Computer program); Lotus 1-2-3 (Computer program); dBase III Plus (Computer program)