Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
2 ta ish
L. N. Gumilyov Eurasian National University
Abdelghani Errehymy, Youssef Khedif, M. Daoud +3
Marin Drinov Academic Publishing House, Gulmira Yergaliyeva, Tolkynay Myrzakul +2