PENGURANGAN NON VALUE ADDED ACTIVITIES MENGGUNAKAN METODE LEAN SIX SIGMA: Elly Wuryaningtyas Yunitasari Program Studi Teknik Industri Fakultas Teknik Universitas Sarjanawiyata Tamansiswa, Yogyakarta, DIY, Indonesia. DINTEK, [S. l.], v. 11, n. 2, p. 15–25, 2018. Disponível em: https://jurnal.ummu.ac.id/index.php/dintek/article/view/133. Acesso em: 19 jan. 2026.