Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
5 ta ish
University for Development Studies
Abdul Jalil Mahama, Ibrahim Nandom Yakubu
Khadijah Iddrisu, Ibrahim Nandom Yakubu, Simplice Asongu
Abdul-Latif Mohammed, Ibrahim Nandom Yakubu, Abdul Jalil Mahama
Abdul Jalil Mahama, Ibrahim Nandom Yakubu, Abdul-Latif Mohammed