Huong, T.T. , Hai, C.T.H. and Duc, P.T. 2025. An extension of complex fuzzy inference system for alert earlier credit risk at business banks. Edelweiss Applied Science and Technology. 9, 4 (Apr. 2025), 2147–2156. DOI:https://doi.org/10.55214/25768484.v9i4.6500.