Kobal, Vasyl, and Maryna Kobal. “Raising the Achievements of Schoolchildren in Mountain Regions by Means of Using Local History Lore Materials”. Journal of Vasyl Stefanyk Precarpathian National University 1, no. 2-3 (December 22, 2014): 109–114. Accessed July 25, 2024. https://journals.pnu.edu.ua/index.php/jpnu/article/view/2128.