41
Published [1982]

Report Number(s): APA 6 SUS 44

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42
43
47
Published [2014]

Report Number(s): SuWa 275

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48
Published [1981]

Report Number(s): APA 3278

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49
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52
Published [1977]

Report Number(s): APA 3284 (draft)

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53
Published [1978]

Report Number(s): APA 3284

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54
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by Ashton, Bill,
Published [1984]

Report Number(s): APA 2506

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59
Published [1984]

Report Number(s): APA 1718 SUS 346

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