?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Ritonga&rft.au=Ritonga%2C+Dorlan+Yolanda&rft.aufirst=Dorlan+Yolanda&rft.title=Dampak+Pandemi+Covid-19+terhadap+Pendapatan+Petani+Hortikultura+di+Desa+Seberaya%2C+Kecamatan+Tigapanah%2C+Kabupaten+Karo%2C+Provinsi+Sumatera+Utara&rft.degree=Bachelor%2FSkripsi&rft.inst=Universitas+Negeri+Padang&rft.date=9+July+2021