D. Masri, A. Apriyandi, and B. Harahap, “Implementation of K-Means for Analysis of Factors Causing Consumer Satisfaction at Madani Hotel Medan City”, Bulletin of Comp. Sci. Electr. Eng., vol. 3, no. 2, pp. 66–72, Dec. 2022, doi: 10.25008/bcsee.v3i2.1162.