Q. What is Ethnocentrism?
For information about Ethnocentrism, you can search for articles and definitions using the Encyclopedia Britannica.
For additional references in relation to multiple subjects (such as social sciences, psychology, literature, philosophy, history, geography, medicine, etc.) Credo Reference would be a great place to look.
Simply type in "ethnocentrism" to begin your search. From there, you can add additional search terms as needed, for example, "ethnocentrism and propaganda".