The characterization of biobriquette production using a pressing systemRony Azmi Faisal, Mu’alim, Sabarudin Akhmad, Sugeng Purwoko, Anis Arendra, Richita Fany and Chintia Dwi KEPJ Web Conf., 344 (2025) 01044DOI: https://doi.org/10.1051/epjconf/202534401044