Physical Treatment of Oil Palm Shell for Briquette Production as Bioenergy at Remote AreaAmaliyah Rohsari Indah Utami, Suwandi Suwandi, Yoga Alun Mustafa and Maizirwan MelE3S Web Conf., 226 (2021) 00008DOI: https://doi.org/10.1051/e3sconf/202122600008