Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
2 ta ish
Plekhanov Russian University of Economics
В.М. Репникова, L.A. Shevaldova
В.М. Репникова, Olga Nicolaevna Bykova, Andrey Petrovich GARNOV