KAWIAK, Ewelina. Heuristic Method of G. Polya in the Opinion of the Early-School Education Teachers. Journal of Vasyl Stefanyk Precarpathian National University, [S. l.], v. 11, n. 1, p. 103–110, 2024. DOI: 10.15330/jpnu.11.1.103-110. Disponível em: https://scijournals.pnu.edu.ua/index.php/jpnu/article/view/7841. Acesso em: 3 jul. 2024.