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ISSN:0149-7189|20|2|137-149

Elsevier‎(1997)‎

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By Peters C.P.   Friedman N.   Jacobs S.S.   Jones B.J.   Kelley J.M.   Nazar K.L.   in Evaluation and Program Planning

ISSN:0149-7189|22|4|429-437

Elsevier‎(1999)‎

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