↑ “Earwax”. american-hearing.org. American Hearing Research Foundation. 2008.
↑ Overfield, Theresa (1985). Biologic variation in health and illness: race, age, and sex differences. Menlo Park, Calif: Addison-Wesley, Nursing Division. tr. 46. ISBN978-0-201-12810-9. ... most common type in Whites and Blacks is dark brown and moist. Dry wax, most common in Orientals and Native Americans, is gray and dry. It is flaky and may form a thin mass that lies in the ear canal.
↑ Guest, Greener, et. al., "Impacted Cerumen" ("Dry wax contains around 20% lipid, compared to approximately 50% in wet cerumen. Other than this, the two forms show few other biochemical differences.")
