Tetiana Pantiuk Drohobych State Pedagogical University named after Ivan Franko Ukraine
Olena Nevmerzhytska Drohobych State Pedagogical University named after Ivan Franko Ukraine
Svitlana Ivakh Drohobych State Pedagogical University named after Ivan Franko Ukraine
Lesia Perkhun Drohobych State Pedagogical University named after Ivan Franko Ukraine
Maria Yarushak Drohobych State Pedagogical University named after Ivan Franko Ukraine