Analisis tipe pengarui kelompok referensi terhadap pembelian tv berwarna di Kotamadya Dati II Yogyakarta = The Analysis of Types of Influence Exerted by Reference Groups on Purchasing Color TV Set at Kotamadya Dati II. - Perpustakaan UGM, i-lib ([Yogyakarta] : Universitas Gadjah Mada, 1995)