Fitriawan Syahadat, Edy, et al. “Analisis Perbandingan Kinerja Keuangan Perusahaan Jasa Pengiriman Sebelum Dan Saat Pandemi Covid-19”. MANDAR: Management Development and Applied Research Journal, vol. 6, no. 2, June 2024, pp. 120-5, doi:10.31605/mandar.v6i2.3812.