FANNI PRATAMA, Y.; SUHARTINI. Jurnal Integrasi Metode Servqual dan Design for Six Sigma Untuk Peningkatan Layanan Jasa: (Studi Kasus Berkat Jaya Ekspedisi Surabaya). Journal of Research and Technology, [S. l.], v. 10, n. 1, p. 91–101, 2024. DOI: 10.55732/jrt.v10i1.1225. Disponível em: https://journal.unusida.ac.id/index.php/jrt/article/view/1225. Acesso em: 6 feb. 2025.