C. R. S. Prakoeswa, N. Hidayah, A. Dewi, I. Purnamasari, A. A. Adriansyah, and A. M. Yaqub, “Patient Satisfaction, Perception-Expectation Gap, and Costumer Satisfaction Index in Annual Survey 2021 at Dr. Soetomo General Academic Hospital”, FMI, vol. 58, no. 2, pp. 178–186, Jun. 2022.