NILAI TUKAR PENDAPATAN NELAYAN TANGKAP IKAN TUNA SEBELUM DAN SELAMA COVID-19 DI DESA HOLIMOMBO JAYA KECAMATAN PASARWAJO KABUPATEN BUTON Milyani Wabula, Sarini Yusuf, Rosmawati Rosmawati, Irdam Riani, Hasnia Arami Jurnal Bisnis Perikanan (Journal of Fishery Business) Vol. 6 No. 1 2022