Abdul, Fino Wahyudi. “USULAN PENERAPAN METODOLOGI DMAIC DAN SERVICE BLUEPRINT UNTUK PERBAIKAN KUALITAS LAYANAN TERHADAP KEPUASAN PELANGGAN PT MUTU”. Operations Excellence: Journal of Applied Industrial Engineering, vol. 7, no. 3, Apr. 2016, https://training-ojs3-publikasi.mercubuana.ac.id/index.php/oe/article/view/545.