Antony, W. G., Harlen, H., & Maulida, Y. (2021). Effect of Internal and External Factors on Profitability in Sharia Business Units (UUS) PT. Bank Tabungan Negara (Persero) Tbk. Indonesian Journal of Economics, Social, and Humanities, 3(2), 65–83. https://doi.org/10.31258/ijesh.3.2.65-83