Effect of Pyrolysis Temperature and Adhesive Type on the Quality of Biobriquette from Coffee Stem BiomassRosdanelli Hasibuan, Juliza Hidayati, Erni Misran, Intan Permata Sari Purba, Fauzan Erlangga, Viqry Pramananda and Fatimah Fahira SiregarE3S Web Conf., 519 (2024) 02001DOI: https://doi.org/10.1051/e3sconf/202451902001