1
Published [1981]
...SUS 24...

Report Number(s): APA 324 APA 1311 RTS 7 SUS 24

Link to full text
2
Published 1981.
...SUS 25...

Report Number(s): APA 322 APA 1310 RTS 8 SUS 25

Link to full text
3
Published [1982]
...SUS 22...

Report Number(s): APA 320 APA 403 APA 1313 APA 1314 RTS 13 SUS 22

Link to full text