N. D. Hashim, M. R. M. Yunus, A. Abdullah, M. M. Baki, S. Husain, and M. Ami, “Primary Malignant Parotid Lymphoma: Two Case Reports with Different Disease Progression and Treatment”, Philipp J Otolaryngol Head Neck Surg, vol. 26, no. 1, pp. 31–33, Jun. 2011.