Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
2 ta ish
University of Maroua
Sabine Nadine Ekamena Ntsama, Simplice Asongu, Saidou Ndelna
Sabine Nadine Ekamena Ntsama, Bybert Helgath Moudjare, Simplice Asongu