Tinjauan yuridis kontrak leasing marine vessel power plant untuk pengadaan barang/jasa ketenagalistrikan di Indonesia: analisis kontrak leasing marine vessel power plant antara PT PLN (persero) dan PT KAR Powership Indonesia = Legal analysis on leasing marine vessel power plant contract for procurement of goods/service of electrification in Indonesia: analyzing leasing marine vessel power plant contract between PT PLN (persero) and PT KAR Powership Indonesia