Siregar, Saparuddin, et al. “Menguji Peran Pembiayaan Mudharabah, Musyarakah, Dan Murabahah Dalam Peta Profit Efficiency Perbankan Syariah Di Indonesia Masa Pandemi COVID-19”. Jurnal Ilmiah Ekonomi Islam, vol. 8, no. 2, July 2022, pp. 1340-7, doi:10.29040/jiei.v8i2.5415.