Strategi bisnis six sigma
Manajemen Usahawan Indonesia, XXXII (01) Januari 2003: 47-49, 2003
 Artikel Jurnal
George, Michael L.
Lean six sigma for service : how to use lean speed and six sigma quality to improve services and transactions
McGraw-Hill, 2003
 Buku Teks
Utilizing six sigma to improve the processing time : a simulation study at an emergency departement
by Nabeel Mandahawi, Mohammed Shurrab, Sameh Al-Shihabi, Abdallah A. Abdallah and Yousuf M. Alfarah
Taylor and Francis, 2017
 Artikel Jurnal
Aulia Ichwan
Analisis penerapan lean six sigma dan critical success factor untuk proses perbaikan kualitas layanan jaringan seluler studi kasus: PT Indosat, Tbk = Analysis of the application of lean six sigma and critical success factor for mobile service quality improvement process case study: PT Indosat, Tbk
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2015
 UI - Tesis Membership
V. Didik Subagyo
Penerapan metode six sigma sebagai pengatasan masalah kualitas pada perusahaan manufaktur
Fakultas Teknik Universitas Indonesia, 2003
 UI - Skripsi Membership