00635naa#a2200169#i#450# EN\INFRA-M\bibl\42269 20240427202221.6 1998-0728 20210217b2021####ek#y0engy0150####ca RU Methodological Support of the Work of Primary Schoolchildren with Information Presented in the Form of Diagrams Journal article Moscow INFRA-M Academic Publishing LLC. 2021 3 с. Journal article local Образование. Воспитание. Обучение. Организация досуга. 37 Pichugin S. S. naukaru.ru