Purvandala , Muhammad Kiki, and Hana Catur Wahyuni. “Six Sigma and SWOT Integration for Donut Quality Control: Integrasi Six Sigma Dan SWOT Untuk Pengendalian Kualitas Donat”. Indonesian Journal of Innovation Studies 26, no. 2 (February 20, 2026): 10.21070/ijins.v26i2.2031. Accessed March 5, 2026. https://ijins.umsida.ac.id/index.php/ijins/article/view/2031.