Controlling factors for sorption of carbon dioxide for low rank coals by Hasim, Ismail, Sapawie, Nurfirdaus, Noor Azam, Siti Nor Syuhaidah Hafizah, Akhshah, Muhamad Fakhrul Ikhmal, Rahim, Afikah, Hakimi, Mohammed Hail, Sandi Erfani, Sandi Erfani, Hendy Setiawan, Hendy Setiawan