Tsamrotul Fuadah, Puteri Annisa, and Eko Agus Prasetio. “Capturing the Voice of the Customer for Paper-Notebook Product Development”. European Journal of Business and Management Research 4, no. 5 (September 23, 2019). Accessed December 1, 2024. https://ejbmr.org/index.php/ejbmr/article/view/101.