1. Catholic University in Ruzomberok,Department of Catholic Theology,Ruzomberok,Slovakia
2. Ternopil Volodymyr Hnatiuk National Pedagogical University,Department of Pedagogy and Methods of Primary and Preschool Education,Ternopil,Ukraine
3. Ivan Franko National University of Lviv,Department of General Pedagogy and Pedagogy of the Higher School,Lviv,Ukraine
4. Khmelnytskyi Humanitarian-Pedagogical Academy,Department of Pedagogy,Khmelnytskyi,Ukraine
5. Ivan Franko National University of Lviv,Department of Primary and Preschool Education,Lviv,Ukraine