Mahsulotlar
Ishlab chiquvchilar uchun
4 ta ish
Ish: The general problem of the stability of motion
G. S. Sokolovskiĭ, A. G. Deryagin, V. I. Kuchinskiĭ
Shirali Kadyrov, Yerimbet Aitzhanov, Nurdaulet Shynarbek
А. Б. Батхин, Zafar Khaydar ugli Khaydarov