Riina SyivarulliNugroho Agung PambudiMochamad Syamsiro0000-0001-6467-0239Bernard Saw L H2024-11-012024-11-012021https://doi.org/10.32604/EE.2020.010493https://dspace-cris.utar.edu.my/handle/123456789/5761Upgrading the Quality of Solid Fuel Made from Nyamplung (Calophyllum inophyllum) Wastes Using Hydrothermal Carbonization Treatmentjournal-article