21
22
Published [1982]

Report Number(s): APA 36 APA 453

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23
24
25
30
31
32
Published [2013]

Report Number(s): SuWa 29

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34
35
37
Published 1984.

Report Number(s): APA 2561 SUS 370

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38
Published [2012]

Report Number(s): SuWa 90

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Published [1985]

Report Number(s): APA 2921 (draft) SUS 513

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