Koffman, E. B., & Friedman, F. L. (1979). Problem solving and structured programming in BASIC. Addison-Wesley.
Chicago-čujuhus (17. p.)Koffman, Elliot B., juo Frank L. Friedman. Problem Solving and Structured Programming in BASIC. Reading: Addison-Wesley, 1979.
MLA-čujuhus (9. p.)Koffman, Elliot B., juo Frank L. Friedman. Problem Solving and Structured Programming in BASIC. Addison-Wesley, 1979.
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