Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
2 ta ish
North Sumatra Islamic University
Nurliana Nasution, N. Nadrah, Mohamad Rizal Pautina +6
M. Mohzana, Hary Murcahyanto, Ana Rusmardiana +3