Leonov, P. Y., N. V. Ivanov, O. S. Kotelyanets, S. G. Kazaryan, and A. V. Atavina. “The Use of Analytical Tools in the Conduct of Internal Control Procedures”. KnE Engineering, Vol. 3, no. 6, Oct. 2018, pp. 18–23, doi:10.18502/keg.v3i6.2966.