Kajian utilisasi dan biaya pelayanan kesehatan peserta JPKM Takaful di RS PKU Muhammadiyah Yogyakarta = A study on health service utilization and cost of Takaful community health care insurance participants at PKU .. - Perpustakaan UGM, i-lib ([Yogyakarta] : Universitas Gadjah Mada, 2006)