Setiawan, S., Affandi, N. and Umalihayati, U. 2025. Implementation of the Lean Six Sigma Method to Improve Product Quality in the Food and Beverage Industry. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE). 8, 2 (Mar. 2025), 3695-3707. DOI:https://doi.org/10.31538/iijse.v8i2.5999.