Rahmad, B., Sugeng Raharjo, Yody Rizkianto, Aris Buntoro, Dita Antari Setyaningsih and Obrin Trianda 2023. Coal dan Shale Carbonaceous Ngrayong Formation, Daerah Sale Area, Rembang Regency, Central Java Case Study : Study of Sedimentation terhadap Microscopic Characteristic of Pyritic Sulphur. ReTII. 18, 1 (Nov. 2023), 811-819.