Wijianto, W., Ulfah, I.F. and Mustoffa, A.F. 2021. Ketahanan UMKM Frozen Food “Wisna Fresh” Kabupaten Ponorogo Melintasi Pandemi Covid 19. Al-Buhuts. 17, 2 (Dec. 2021), 343–355. DOI:https://doi.org/10.30603/ab.v17i2.2339.