Mohamad Fauzi, S.N., Ghazali, P.L., Suib , A.F., Nawi, F.A.M., Zain, E.N.M., Rohim, R.A.A. and Guci, D.A. 2025. Developing a Risk Index for Start-Up Businesses in SMEs Using the Fuzzy Delphi Method (FDM). Communications in Mathematics and Applications. 16, 1 (Jul. 2025), 15–27. DOI:https://doi.org/10.26713/cma.v16i1.2893.