Qian, Z.-W. et al. (2018) « Performance Evaluation of Digital Marketing in Health Care Industry with the Application of Data Envelopment Analysis », Revista de Cercetare si Interventie Sociala, 60, p. 39–50. Disponible sur: https://www.rcis.ro/journal/article/view/2417-performance-evaluation-of-digital-marketing-in-health-care (Consulté le: 6 novembre 2026).