Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
3 ta ish
King Fahd University of Petroleum and Minerals
I.B. Obot, Ikenna B. Onyeachu
Cornelius C. Ahanotu, Ikenna B. Onyeachu, Moses M. Solomon +3
I.B. Obot, Ikenna B. Onyeachu, Savıour A. Umoren +5