00637naa#a2200181#i#450# EN\INFRA-M\bibl\34446 20241229074710.7 2306-1731 20191225b2019####ek#y0engy0150####ca RU Methods of Experimental Work on the Study of Self-Esteem of Students with Disorders of the Musculoskeletal System Journal article Moscow INFRA-M Academic Publishing LLC. 2019 4 с. Journal article local Статистика. Демография. Социология. 31 Frolochkina D. Yu. Brykin Yu. V. naukaru.ru