Chandra, Rio. “Importance-Perfomance Analysis (IPA) Implementation: Preference Analysis of Young Consumers of PengenKopi: Case Study on Young Consumer’s of Pengenkopi in Batam City”. International Journal of Review Management Business and Entrepreneurship (RMBE), vol. 2, no. 1, June 2022, pp. 149-65, doi:10.37715/rmbe.v2i1.3026.