@article{Keldibekova2019tasks,
author={Keldibekova, A.O.},
title={Tasks of the Final Stage of the 2019 Republican Olympiad in Mathematics, Methods and Criteria for Evaluating Their Solution},
journal={Scientific Research and Development. Socio-Humanitarian Research and Technology},
publisher={INFRA-M Academic Publishing LLC.},
year={2019},
pages={54-59},
volume={8},
issue={4},
}