Alhamdi, R. , Sugianto, S. and Siregar, S. 2022. OPTIMIZATION OF SHARIA BANK CUAN IN THE INDUSTRIAL ERA 4.0. International Journal of Educational Review, Law And Social Sciences (IJERLAS). 2, 1 (Jan. 2022), 9–20. DOI:https://doi.org/10.54443/ijerlas.v2i1.128.