Kang, C. K.-T., C.-Y. Lin, and Y.-H. Ho. “Key Factors to Increasing Free Cash Flow for Manufacturers Utilizing Lean Production: An AHP-DEMATEL Approach”. Information Management and Business Review, Vol. 14, no. 2(I), Oct. 2022, pp. 28-45, doi:10.22610/imbr.v14i2(I).3335.