Analisis Isu Legal, Akuntansi, Pajak dan Pemilihan Skema Kemitraan Proyek PLTP Berdasarkan Kemudahan Administrasi Pajak (Studi Kasus PT ABC) = The Analysis of Legal, Accounting, Tax Issues and Selection of The Geothermal Power Plant Project Partnership Scheme Based on The Ease of Tax Administration (Case Study of PT ABC)