@article{Safina2017analysis,
author={Safina, G.L. and Galaguz, Y.P.},
title={ANALYSIS OF TESTING IN MATHEMATICS},
journal={Bulletin of Belgorod State Technological University named after. V. G. Shukhov},
publisher={Belgorod State Technological University named after V.G. Shukhov},
year={2017},
pages={160-163},
volume={2},
issue={5},
}