Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
2 ta ish
National University of Malaysia
S.A. Salleh, M. Y. A. Rahman, Tengku Hasnan Tengku Abdul Aziz
Mohd Sukor Su’ait, M. Y. A. Rahman, A. Ahmad