00645naa#a2200193#i#450# EN\INFRA-M\bibl\4673 /en/manage/index 20250303022334.1 1998-0728 20141217b2014####ek#y0engy0150####ca RUS RU The Integrated Lesson on Technology and the World Around Us: “Borisovsky Clay Sound Toy of the Belgorod Region” (4th grade) Journal article Moscow INFRA-M Academic Publishing LLC. 2014 3 с. Journal article local Ivanov E. Ivashchenko Elena Viktorovna test.editorum.ru /en/manage/index