Nurwulan NR. Peningkatan Efisiensi di Industri Jasa Penerbangan dengan Lean Six Sigma: Kajian Literatur. IKRAITH-EKONOMIKA [Internet]. 2020Nov.11 [cited 2024Nov.24];4(1):128-35. Available from: https://journals.upi-yai.ac.id/index.php/IKRAITH-EKONOMIKA/article/view/1065