Determining Impacts of Certification and Digitalization on Poverty of Smallholder Gayo Coffee Farmers in IndonesiaWahyu Karami, Musa Mustada, Nonny S Navega, Humam Hamid and Agus NugrohoE3S Web Conf., 232 (2021) 03027DOI: https://doi.org/10.1051/e3sconf/202123203027