Halytska, N. “RESEARCH SKILLS OF STUDENTS DURING THE LESSONS OF NATURAL AND MATHEMATICAL DISCIPLINES: THE OBJECT OF HISTORICAL AND PEDAGOGICAL STUDY (1959–1972 OF THE ХХth CENTURY)”. Scientific Journal of Polonia University, Vol. 38, no. 1-1, Oct. 2020, pp. 138-44, doi:10.23856/3818.