Nugroho, M. N., S. Siswahyono, P. Prasetyo, E. Sumartono, and A. H. Hakim. “Design of Portable Coffee Dryer in Kabawetan District, Kepahiang Regency”. MITRA: Jurnal Pemberdayaan Masyarakat, vol. 5, no. 2, Nov. 2021, pp. 99-111, doi:10.25170/mitra.v5i2.2213.