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Published [1980?]

Report Number(s): APA 1320 SUS 335

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Published [1984]

Report Number(s): APA 2503 SUS 436

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Published 1985.

Report Number(s): SUS 700

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Published [1985]

Report Number(s): SUS 494

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Published [1985]

Report Number(s): APA 2958 (draft) SUS 484

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