Ognyana Georgieva-Teneva
Vratsa College of Еducation
St. Cyril and St. Methodius University of Veliko Tarnovo (Bulgaria)

Ognyana Georgieva-Teneva
Vratsa College of Еducation
St. Cyril and St. Methodius University of Veliko Tarnovo (Bulgaria)
София 1113, бул. “Цариградско шосе” № 125, бл. 5