Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
2 ta ish
Kwame Nkrumah University of Science and Technology
Osei Akoto, Eric Gyimah, Zhi-Ying Zhan +2
Francis Opoku, Osei Akoto, Noah Kyame Asare–Donkor +1