42
Published [1981?]

Report Number(s): APA 62 APA 1265

Link to full text
Link to full text
44
45
Published [1982]

Report Number(s): APA 1187 SUS 87

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46
47
48
50
53
56
Published [1981]

Report Number(s): APA 387 SUS 3

Link to full text
57
58
Published [1980]

Report Number(s): APA 512

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59
Published [1982]

Report Number(s): APA 42 APA 451

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