REOSEKAR, Ravi S.; JUNNARKAR, Nitin D. Quality Improvement through Systematic Approach-Six Sigma. Journal of Engineering Education Transformations, [S. l.], p. 1–7, 2011. DOI: 10.16920/jeet/2011/v24i3/113457. Disponível em: https://journaleet.in/index.php/jeet/article/view/299. Acesso em: 5 dec. 2025.