1
Published [1981]
...SUS 54...

Report Number(s): APA 401 SUS 54

Link to full text
2
Published [1981]
...SUS 80...

Report Number(s): APA 1210 SUS 80

Link to full text
3
Published [1982]
...SUS 4...

Report Number(s): APA 1336 APA 385 SUS 4

Link to full text
4
6
Published [1981]
...SUS 56...

Report Number(s): APA 10 APA 84 APA 297 APA 1327 SUS 56

Link to full text