Diffusion of science and technology in the utilization of coffee husk waste at the Mu’min Mandiri Islamic Boarding School in Sidoarjo. Community Empowerment, [S. l.], v. 7, n. 3, p. 511–515, 2022. DOI: 10.31603/ce.6595. Disponível em: https://journal.unimma.ac.id/ce/article/view/6595. Acesso em: 28 sep. 2026.