na INLIS000000000010428 20180413111012.0 978-602-72113-8-4 010-041800000000004 SBPUBUK Ind [23] 622.3 622.3 YEN b Yenny Narny Rekam Jejak PT.Bukit Asam (Persero) Tbk.Unit Pertambangan Ombilin (PT.BA-UPO) Sawahlunto, Yenny Narny,Fikrul Hanif Cet.1 Sawahlunto : PT.BA-UPO, 2016 ix,210 hlm.: Ilus.; 26 cm. hlm.208-210 Tambang Batubara Fikrul Hanif SBPUBUK 0159/DPK/2018