PRATIWI, Kurniasari Dwi; DJUMINAH. Covid-19 dan Efisiensi Biaya Operasional terhadap Pendapatan Operasional (BOPO). Jurnal Manajemen Dayasaing, [S. l.], v. 27, n. 2, p. 64–72, 2025. DOI: 10.23917/dayasaing.v27i2.12039. Disponível em: https://journals2.ums.ac.id/dayasaing/article/view/12039. Acesso em: 19 mar. 2026.