Kumoro, Joko, Chusnu Syarifa Diah Kusuma, Mochamad Hanafi, and Suhartanto Suhartanto. 2021. “RESPONSE PERFORMANCE UMKM PROVINSI DAERAH ISTIMEWA YOGYAKARTA: IMPLIKASI SURVEI COVID-19”. Efisiensi : Kajian Ilmu Administrasi 18 (2):222-35. https://doi.org/10.21831/efisiensi.v18i2.53452.