Umumiy tilshunoslik
Ravshanxo'ja Rasulov
kel_diev_t_t_uche[..]
Неизвестно
ahmad_lutfiy_qozo[..]
Deyl Karnegi - do'st orttirish
RADIATION PROTECTION AND SAFETY OF RADIATION SOURCES:INTERNATI[..] ...
MAAE / IAEA - International Atomic Energy Agency