00515naa#a2200169#i#450# EN\INFRA-M\bibl\15276 20241020082756.7 1998-0728 20170210b2017####ek#y0engy0150####ca RUS RU Methods and Techniques of Effective Use of Training Lab Equipment in Primary School Journal article Moscow INFRA-M Academic Publishing LLC. 2017 2 с. Journal article local Motkova Yuliya Yur'evna zh-szf.ru