^Brannon, RB; Sciubba, JJ; Giulani, M (July 2001). "Ductal papillomas of salivary gland origin: A report of 19 cases and a review of the literature". Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology. 92 (1): 68–77. doi:10.1067/moe.2001.115978. PMID 11458248.
^Klijanienko J; Vielh P; Batsakis JG (1 January 2000). Salivary Gland Tumours. Vol. 15. Karger Medical and Scientific Publishers. pp. III–XII, 1–138. ISBN 978-3-8055-7024-4. PMID 10879373. {{cite book}}: |journal= ignored (help)