Pratama, L. A. H., A. C. Romdhoni, and S. Herawati. “Predictive Clinical Factors for Penetration-Aspiration in Patients With Nasopharyngeal Carcinoma After Radiotherapy”. International Journal of Health Sciences, vol. 6, no. S8, Sept. 2022, pp. 2185-94, doi:10.53730/ijhs.v6nS8.12563.