Mohd Sakri, N. A.; Ahmed Al-Amrani, W.; Zakaria, H.; Wibowo, A.; Megat Hanafiah, M. A. K. Biosorption of Methylene Blue on Sodium Hydroxide-Treated Oil Palm Trunk: Characterisation, Isotherm, and Kinetic Studies. JOMALISC 2023, 2, 154-164.