The motivation of farmer group members in utilizing urban yards in covid-19 pandemic in Yogyakarta City, IndonesiaRetno Wulandari, Roso Witjaksono, Ratih Innekewati and Hilmi Fauzan DzikriE3S Web Conf., 316 (2021) 02040DOI: https://doi.org/10.1051/e3sconf/202131602040