@article{Ivashchenko2018organization,
author={Ivashchenko, E.V. and Cybul'nik, I.V.},
title={Organization of Educational Process in Elementary School Based on Regional Natural History Material},
journal={Primary Education},
publisher={INFRA-M Academic Publishing LLC.},
year={2018},
pages={25-30},
volume={6},
issue={1},
}