Stern, E. (2005). Evaluation research methods: Edited by Elliot Stern. SAGE.
Tohutoru Kātū ChicagoStern, Elliot. Evaluation Research Methods: Edited by Elliot Stern. London ; Thousand Oaks, Calif.: SAGE, 2005.
Tohutoro MLAStern, Elliot. Evaluation Research Methods: Edited by Elliot Stern. SAGE, 2005.
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