BURTSEVA, Tetiana, et al. “THE ROLE OF ECONOMIC AND MATHEMATICAL MODELS AND INFORMATION TECHNOLOGIES IN MARKETING ACTIVITIES OF RETAIL ENTERPRISES”. Herald of Khmelnytskyi National University. Economic Sciences, vol. 326, no. 1, Jan. 2024, pp. 381-5, https://doi.org/10.31891/2307-5740-2024-326-60.