Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
4 ta ish
Navoi State Mining Institute
V.P. Terekhin
V.P. Terekhin, Yu.M. Akopyan
S.V. Rudnev, V.P. Terekhin
V.P. Terekhin, S.V. Rudnev