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by Alonso, Marcelo; Finn, Edward J.
by Laurillard, Diana
by Delores M. Etter (University of Colorado, Boulder)
by Newman, John Henry; Ward, Leo L.
by Bock, R. Darrell; University of California, Los Angeles Center for Research in evaluatio; Norc (Organization)
by Smith, Robert W.
by Balderston, Frederick E.
by Williams, Tennessee
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