Widodo, Andik, and Dwi Soediantono. “Benefits of the Six Sigma Method (DMAIC) and Implementation Suggestion in the Defense Industry: A Literature Review”. International Journal of Social and Management Studies 3, no. 3 (February 12, 2022): 1–12. Accessed October 23, 2025. https://ijosmas.org/index.php/ijosmas/article/view/138.