Enny Istanti, Achmad Daengs GS, Rina Dewi, Diana Zuhro, Sutini Sutini, and Moch. Rizaldy Rahmansyah. 2024. “Service Design Performance Based On Consumer Preferences : Case Study In Nav Karaoke Family Biliton In Surabaya City”. International Journal of Economics and Management Sciences 1 (3):142-60. https://doi.org/10.61132/ijems.v1i3.131.