TY - GEN TY - GEN T1 - Qualitative approaches to evaluation in education : the silent scientific revolution A2 - Fetterman, David M. LA - eng PP - New York PB - Praeger YR - 1988 UL - https://kansalliskirjasto.finna.fi/Record/helka.994498983506253 SN - 0-275-92917-5 kovakantinen ER -