New trends in the psychology of languageKhristo Ki︠u︡chukov, Barbara Bokus, Encho Gerganov, Bill D. New · First published 2016Open the Tome
Romani studiesKhristo Ki͡uchukov, Łukasz Kwadrans, Ladislav Fizik, Encho Gerganov, William Templer · First published 2015Open the Tome
Psikhometrichni metodi za proverka i ot͡s︡enka na znanii͡a︡ po bŭlgarski ezikEncho Gerganov · First published 1976Open the Tome
