E. R. Sebastin, P. Darishini, T. C. Ling, and H. P. Ser, “An extremely rare malignant tumour of nasopharynx: primary nasopharyngeal non salivary type adenocarcinoma”, Int J Otorhinolaryngol Head Neck Surg, vol. 8, no. 2, pp. 160–162, Jan. 2022.