ULLY ARTI DAMANIK, Ully; SRI WAHYUTI. Analisis Komparatif Rasio Profitabilitas Sebelum Dan Saat Adanya Pandemi Covid-19 Pada PT Ultrajaya Milk Industry & Trading Company Tbk Tahun 2019-2021. OBOR: Oikonomia Borneo, [S. l.], v. 5, n. 1, p. 104–118, 2023. Disponível em: https://journal.uwgm.ac.id/oikonomia/article/view/2133. Acesso em: 3 jul. 2024.