Гладкая, Валентина Сергеевна, and Вера Людвиговна Грицинская. “THE INDEX EVALUATION OF PHYSICAL DEVELOPMENT BY RURAL STUDENTS”. Mother and Baby in Kuzbass, vol. 18, no. 3, July 2017, pp. 36-39, https://mednauki.ru/index.php/MD/article/view/109.