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Published [1981]
“...SUS 43 (v. 1)...”Report Number(s): APA 220 APA 356 APA 1435 SUS 43 (v. 1)
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Published [1981]
“...SUS 56...”Report Number(s): APA 10 APA 84 APA 297 APA 1327 SUS 56
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