NUGRAHA, Eka, Rian Joko NUGROHO, Widiya NOORMAYASARI, and Agatha Rinta SUHARDI. 2025. “Application of Quality Function Deployment in Improving Service Quality at PT. Yamaha Indonesia Motor Manufacturing”. International Journal of Environmental, Sustainability, and Social Science 6 (5):1003-8. https://doi.org/10.38142/ijesss.v6i5.1492.