Spector, P. E. (2001). SAS programming for research and social scientists/Paul E. Spector. Sage.
Lua i Stíl Chicago (17ú heag.)Spector, Paul E. SAS Programming for Research and Social Scientists/Paul E. Spector. Sage, 2001.
Lua MLA (8ú heag.)Spector, Paul E. SAS Programming for Research and Social Scientists/Paul E. Spector. Sage, 2001.
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