J.ALFANI YANTO SULISTYO; YOHANES ANTON NUGROHO. ANALISIS KETERLAMBATAN PENGIRIMAN PAKET MENGGUNAKAN METODE SIX SIGMA DI J&T EXPRESS DC SLEMAN BARAT YOGYAKARTA. Jurnal Cakrawala Ilmiah, [S. l.], v. 1, n. 6, p. 1453–1468, 2022. DOI: 10.53625/jcijurnalcakrawalailmiah.v1i6.1509. Disponível em: https://mail.bajangjournal.com/index.php/JCI/article/view/1509. Acesso em: 5 jul. 2025.