Bulgaria) Mezhdunarodna nauchna konferent︠s︡ii︠a︡ "Problemi na ustnata komunikat︠s︡ii︠a︡" (9th 2011 Veliko Tŭrnovo

Books by Bulgaria) Mezhdunarodna nauchna konferent︠s︡ii︠a︡ "Problemi na ustnata komunikat︠s︡ii︠a︡" (9th 2011 Veliko Tŭrnovo on BookTides.