00488naa#a2200169#i#450# EN\INFRA-M\bibl\1534 20250302004518.7 1998-0728 20140217b2014####ek#y0engy0150####ca RUS RU Hypermedia studying at primary school’s informatics lessons Journal article Moscow INFRA-M Academic Publishing LLC. 2014 8 с. Journal article local Saprykina Nadezhda zh-szf.ru