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ISSN:1098-2140|24|4|423-442

Elsevier‎(2003)‎

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By Lund V.   Olafsen J.A.   Patton M.Q.   Preskill H.   in Evaluation and Program Planning

ISSN:0149-7189|21|1|123-126

Elsevier‎(1998)‎

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By Compton D.   Baizerman M.   Preskill H.   Rieker P.   Miner K.   in Evaluation and Program Planning

ISSN:0149-7189|24|1|33-40

Elsevier‎(2001)‎

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