M. I. Nordin, N. Mustapha, S. Alias, R. Md Yasin, S. Mohamed Zukri, and N. H. Hamzah, “Hospital performance evaluation under uncertainty using neutrosophic DEA: A comparison of CRS and VRS models for healthcare development”, JISED, vol. 11, no. 87, pp. 1028–1037, Oct. 2026.