Fahmi, K., Mustofa, A., Rochmad, I., Sulastri, E., Wahyuni, I. S., & Irwansyah, I. (2022). The Effect of Six Sigma on Quality, Innovation Capability and Work Productivity of Tyre Industries. Journal of Industrial Engineering & Management Research, 1(1a), 1 - 12. https://doi.org/10.7777/jiemar.v2i1.109