Hieu NK, Van NTA, Khuu D, Nguyen TMH. Applying Lean Six Sigma Methodology to Improve Productivity: Case Study at a Mooncake Production Enterprise. mper [Internet]. 2025 Jun. 30 [cited 2026 Sep. 20];16(2):[nr art. 11], s. 1-10. Available from: https://wydawnictwo.pan.pl/index.php/mper/article/view/5636