TIRTANINGRUM, Anggi Putri; ERNAWATI, Dira. Analysis of the Factors Causing Delays of Delivery Using the Six Sigma Method (Case Study: Kompindo Wiratama Inc.). IJIEM - Indonesian Journal of Industrial Engineering and Management, Jakarta, Indonesia, v. 4, n. 3, p. 259–277, 2023. DOI: 10.22441/ijiem.v4i3.20819. Disponível em: https://training-ojs3-publikasi.mercubuana.ac.id/index.php/ijiem/article/view/20819. Acesso em: 28 may. 2026.