DalіakN. 2019. Research of the system of relationship with contractors as an element of evaluation of the efficiency of the activity of the enterprise. The Journal of V. N. Karazin Kharkiv National University. Series: International Relations. Economics. Country Studies. Tourism. 9 (Oct. 2019), 100-108. DOI:https://doi.org/10.26565/2310-9513-2019-9-12.