References
- Liker, J. 2004. The Toyota Way. New York: McGraw-Hill.
- Pyzdek, T., and T. Keller. 2009. The Six Sigma Handbook. New York: McGraw-Hill.
- Scholl, A. 1999. Balancing and Sequencing of Assembly Line. Darmstadt: Physica-Vertag.10.1007/978-3-662-11223-6