Dwiyana Puji Lestari, M. Dachyar (2020) “Improvement of Service Quality for Customer Satisfaction with Lean Six Sigma Method and Development Quality Function Deployment. Case: Telecommunication Company in Indonesia”, International Journal of Advanced Science and Technology, 29(7s), pp. 3605-3613. Available at: http://sersc.org/journals/index.php/IJAST/article/view/17661 (Accessed: 2May2024).