1
Published 1983.
...APA 866...

Report Number(s): APA 866

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3
Published [1982]
...APA 5...

Report Number(s): APA 5 APA 287 APA 1340 APA 1582 SUS 79

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4
Published [1984]
...APA 1453...

Report Number(s): APA 1453

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6
Published [1984]
...APA 1191...

Report Number(s): APA 1191

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7
8
9
Published [1984]
...APA 1027...

Report Number(s): APA 1027

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10
Published [1983]
...APA 467...

Report Number(s): APA 467

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11
Published [1985]
...APA 2969...

Report Number(s): APA 2969

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12
Published [1985]
...APA 2931...

Report Number(s): APA 2931

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13
Published [1985]
...APA 2968...

Report Number(s): APA 2968

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14
15
Published [1983]

Report Number(s): SUS 237

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