Koeswara, Sonny, and Harits Rofi Ardianto. “IMPLEMENTASI SIX SIGMA UNTUK PENINGKATAN KUALITAS SANDAL DI CV. SANCU CREATIVE INDONESIA”. SINERGI 17, no. 3 (October 1, 2013): 274–280. Accessed June 11, 2026. https://publikasi.mercubuana.ac.id/index.php/sinergi/article/view/781.