Agiliar Tukler, Victoria. “Modern Scientific Research on the Development of Proactiveness of Preschool Children”. Journal of Vasyl Stefanyk Precarpathian National University 3, no. 2-3 (December 22, 2016): 114–118. Accessed November 24, 2024. https://journals.pnu.edu.ua/index.php/jpnu/article/view/2882.