Tinjauan hukum mengenai tanggung jawab direksi dalam anggapan kerugian di pekerjaan pengadaan barang dan jasa life time extention gt 2 1 dan gt 2 2 pltgu belawan studi kasus putusan pengadilan nomor 42 pid sus k 2014 pn mdn = legal review regarding responsibility of directors of pt perusahaan listrik negara persero in loss presumption of life time extention goods and services job procurement in gas turbine 2 1 and gas turbine 2 2 pltgu belawan case study court decision / Shabrian Jamil Hasry