Coal Exploration (Eksplorasi Batubara) BANDUNG Tanggal 10 Jan 2022-13 Jan 2022 07 Feb 2022-10 Feb 2022 07 Mar 2022-10 Mar 2022 11 Apr 2022-14 Apr 2022 16 May 2022-19 May 2022 06 Jun 2022-09 Jun 2022 11 Jul 2022-14 Jul 2022 08 Aug 2022-11 Aug 2022 12 Sep