Akmal, S., Hashim, N., Norizan, A., & Yahaya, S. H. (2017). The Improvised Design of Headphone using Integrated Kano and Importance-Performance Analysis for Enhancing Customer Satisfaction. Journal of Advanced Manufacturing Technology (JAMT), 11(1(1), 1-14. Retrieved from https://jamt.utem.edu.my/jamt/article/view/2825