1
Published [1981]
“...SUS 43 (v. 1)...”Report Number(s): APA 220 APA 356 APA 1435 SUS 43 (v. 1)
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2
Published [1982]
“...SUS 79...”Report Number(s): APA 5 APA 287 APA 1340 APA 1582 SUS 79
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