Pengadaan barang dan/atau jasa di lingkungan BUMN dalam perspektif hukum persaingan usaha : studi terhadap kontrak pengadaan jasa pekerjaan pembuatan pool kendaraan eks 3-3 tempat istirahat Sta. 41 Jalan Tol Cabang Jakarta-Cikampek = Procurement on goods and/or services in the State-Owned Enterprises : study on the agreement regarding the services of construction work on vehicles pool eks 3-3 rest area Sta. 41 a road toll branch of Jakarta-Cikampek