Walsh, W. B. (1989). Tests and measurements (4th ed.). Prentice Hall.
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Chicago-čujuhus (17. p.)
Walsh, W. Bruce. Tests and Measurements. 4th ed. Englewood Cliffs: Prentice Hall, 1989.
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MLA-čujuhus (9. p.)
Walsh, W. Bruce. Tests and Measurements. 4th ed. Prentice Hall, 1989.
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