na INLIS000000000010427 20180413110121.0 978-602-61862-5-6 010-041800000000003 SBPUBUK Ind [23] 622.3 622.3 YEN b Yenny Narny PT.Bukit Asam (Persero) Tbk.Unit Pertambangan Ombilin Bersama Karyawan,Masyarakat Dan Stakeholder Jilid II/ Yenny Narny;penyunting,Fikrul Hanif Sufyan Cet.1 [s.i] PT.Bukit Asam (Persero) Tbk. .Unit Pertambangan Ombilin, 2017 ix,126 hlm.: Ilus.; 21 cm. hlm.124-126 Tambang Batubara Fikrul Hanif Sufyan SBPUBUK 0158/DPK/2018 0158/DPK/2018