Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
5 ta ish
King Fahd University of Petroleum and Minerals
I.B. Obot, Nestor Ankah, Ahmad A. Sorour +2
Kabiru Haruna, Tawfik A. Saleh, I.B. Obot +1
I.B. Obot, Kabiru Haruna, Tawfik A. Saleh
Kabiru Haruna, I.B. Obot, Nestor Ankah +2
Kabiru Haruna, Tawfik A. Saleh, M.A. Quraishi