PRODANOVA, N. A., ZATSARINNAYA, E. I., POLYANSKAYA, T. A., BURYAKOVA, O. S. y CHUMAKOVA, N. V. (2021) «Current Issues of Evaluating the Effectiveness of Public Procurement», Propósitos y Representaciones, 9(SPE3), p. e1137. doi: 10.20511/pyr2021.v9nSPE3.1137.