Gošnik, Dušan, Ivan Beker, and Klemen Kavčič. “Lean Six Sigma in Slovenian and Serbian Manufacturing Companies”. International Journal of Industrial Engineering and Management 5, no. 3 (September 30, 2014): 123–130. Accessed November 22, 2024. https://ijiemjournal.uns.ac.rs/index.php/ijiem/article/view/261.