Analisis Pengaruh Perceived Risk Terhadap Aktivitas Pengurangan Risiko Pada Proses Pengambilan Keputusan Pembelian. Analysis of Perceived Risk Influence on the Risk Reduction Activity in the Buying Decision- Making Proce - Perpustakaan UGM, i-lib ([Yogyakarta] : Sekolah Pascasarjana Universitas Gadjah Mada, 2003)