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ISSN:2161-6027|26|2|3-8

AHS International‎(1981)‎

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By Yeoman H.   Clark D.R.   DeLuca D.   Collins J.   Rugg D.   Kann L.   Banspach S.   Kolbe L.   Pateman B.   in Evaluation and Program Planning

ISSN:0149-7189|19|3|209-218

Elsevier‎(1996)‎

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