S. C. Hsiao și L. Hsiao, „Application of Data Envelopment Analysis to Evaluating Elderly Social Welfare Performance”, rcis, vol. 48, pp. 83–94, mar. 2015, Data accesării: nov. 06, 2026. Disponibil la: https://www.rcis.ro/journal/article/view/2152-application-of-data-envelopment-analysis-to-evaluating