Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
3 ta ish
University of the Witwatersrand
Vinod Kumar, Jai Prakash, Jitendra Pal Singh +5
O.M. Ntwaeaborwa, Paul H. Holloway
Hong Hee Kim, David O. Kumi, Kiwoong Kim +6