@article{Ambarcumova2021difficulties,
author={Ambarcumova, E.M.},
title={Difficulties in Mastering Universal Educational Cognitive Actions of Students in the 6th and 8th grade (Based on the Results of Diagnostic Work)},
journal={Standards and Monitoring in Education},
publisher={INFRA-M Academic Publishing LLC.},
year={2021},
pages={9-18},
volume={9},
issue={5},
}