Kusumawati, Aulia, and Lailatul Fitriyeni. “Pengendalian Kualitas Proses Pengemasan Gula Dengan Pendekatan Six Sigma”.
Jurnal Sistem dan Manajemen Industri 1, no. 1 (August 5, 2017): 43–48. Accessed June 15, 2025.
https://e-jurnal.lppmunsera.org/index.php/JSMI/article/view/173.