Nadtoka Viktor Aleksandrovich. The formation of hydrological concepts in teaching physical geography pupils of secondary schools : к.пед.н. : spec.. 13.00.02 - Теорія і методика навчання (з галузей знань) : presented. 2015-09-18; popup.evolution: .; Institute of National Pedagogics at the Academy of Pedagogical Sciences of Ukraine. – , 0415U004628.

Updated: 2026-10-21