Kurniawan, A. N., Anida Syafril, and R. Susworo. “Nasopharyngeal Carcinoma: An Alternative Histological Classification As a Working Formulation”. Medical Journal of Indonesia 2, no. 1 (February 25, 1993): 37-41. Accessed July 18, 2024. http://mji.ui.ac.id/journal/index.php/mji/article/view/3595.