Yusuf, D., Hamdani and Kholik, K. (2019) “The Effect of Buy and Sell Financing (Murabahah), Profit Share Financing (Mudarabah), Equity Capital Financing (Musyarakah) and Non-Performing Financing Ratio on Profitability Level of Sharia Commercial Banks in North Sumatera”, Britain International of Humanities and Social Sciences (BIoHS) Journal, 1(1), pp. 81-88. doi: 10.33258/biohs.v1i1.18.