Nadtoka В. О. . THE FORMATION OF THE SYSTEM OF HYDROLOGICAL CONCEPTS IN THE SCHOOL PHYSICAL AND GEOGRAPHICAL COURSES. Problems of the modern textbook, [S. l.], n. 14, p. 476–484, 2014. Disponível em: https://ipvid.org.ua/index.php/psp/article/view/567. Acesso em: 19 may. 2024.