Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
2 ta ish
University of North Sumatra
Meutia Nurfahasdi, Amir Husin, Silda Adi Rahayu +6
Meutia Nurfahasdi, Amir Husin, Muhammad Faisal +7